One-Pan Smoky Veggie Lentil Lasagne

Featured in: Comfort Plates

This satisfying one-pan creation layers smoky red lentils with mushrooms, courgettes, and bell peppers in a rich tomato-based sauce, all topped with a velvety homemade béchamel. The smoked paprika adds a distinctive depth that perfectly complements the earthy lentils and tender vegetables. Everything cooks together in a single ovenproof pan, minimizing cleanup while maximizing flavor development.

The no-boil lasagne sheets absorb the savory sauces as they bake, creating perfectly tender pasta without the extra step of pre-cooking. After 40 minutes in the oven, the top emerges golden and bubbling with melted mozzarella. Letting it stand for 10 minutes before serving ensures clean, neat slices that hold their shape on the plate.

Updated on Fri, 30 Jan 2026 02:39:11 GMT
Golden-brown One-Pan Smoky Veggie Lentil Lasagne bubbling with melted mozzarella and fresh basil garnish. Save
Golden-brown One-Pan Smoky Veggie Lentil Lasagne bubbling with melted mozzarella and fresh basil garnish. | tastychuck.com

This One-Pan Smoky Veggie Lentil Lasagne is a hearty, comforting dish that reimagines the classic Italian favorite for the modern, busy kitchen. Featuring a savory base of red lentils, mushrooms, and courgettes, it offers all the depth of a traditional bolognese with a unique smoky twist, all while minimizing cleanup by using a single ovenproof skillet for both cooking and baking.

Golden-brown One-Pan Smoky Veggie Lentil Lasagne bubbling with melted mozzarella and fresh basil garnish. Save
Golden-brown One-Pan Smoky Veggie Lentil Lasagne bubbling with melted mozzarella and fresh basil garnish. | tastychuck.com

The beauty of this recipe lies in its efficiency. By using no-boil lasagne sheets and a clever layering technique directly in your frying pan, you achieve that perfect bubbly, cheesy finish without the complexity of multiple pots. It is an ideal midweek meal that delivers restaurant-quality comfort with minimal effort.

Ingredients

  • Vegetable Bolognese
  • 2 tbsp olive oil
  • 1 large onion, finely chopped
  • 2 garlic cloves, minced
  • 1 medium carrot, diced
  • 1 red bell pepper, diced
  • 250 g mushrooms, chopped
  • 2 medium courgettes (zucchini), diced
  • 1 tsp smoked paprika
  • 1 tsp dried oregano
  • 1/2 tsp dried thyme
  • 1/2 tsp chili flakes (optional)
  • 1 tbsp tomato paste
  • 400 g (1 can) chopped tomatoes
  • 1 tbsp soy sauce
  • 125 g dried red lentils, rinsed
  • 500 ml vegetable stock
  • Salt and black pepper, to taste
  • Béchamel Sauce
  • 40 g unsalted butter
  • 40 g plain flour
  • 600 ml whole milk
  • 1/4 tsp ground nutmeg
  • 60 g grated mature cheddar or vegetarian hard cheese
  • Salt and white pepper, to taste
  • Assembly
  • 9–12 no-boil lasagne sheets
  • 50 g grated mozzarella or vegetarian cheese (for topping)
  • Fresh basil leaves, to serve (optional)
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Instructions

Step 1
Preheat the oven to 200°C (180°C fan) / 400°F / Gas 6.
Step 2
Heat olive oil in a large, ovenproof, deep frying pan or skillet over medium heat. Add the onion and garlic, sauté for 2 minutes.
Step 3
Add carrot, red pepper, mushrooms, and courgettes. Cook for 5–6 minutes until softened.
Step 4
Stir in smoked paprika, oregano, thyme, chili flakes, and tomato paste. Cook for 1 minute.
Step 5
Add canned tomatoes, soy sauce, red lentils, and vegetable stock. Bring to a simmer, cover, and cook for 15–20 minutes, stirring occasionally, until lentils are tender and sauce is thickened. Season with salt and pepper.
Step 6
Meanwhile, make the béchamel: Melt butter in a medium saucepan over medium heat. Stir in flour and cook for 1 minute. Gradually whisk in milk, then cook, stirring, until thickened (about 5 minutes). Remove from heat, stir in nutmeg, cheese, and season with salt and white pepper.
Step 7
Remove half the veggie bolognese from the pan and set aside. Layer 1/3 of the béchamel over the remaining sauce in the pan, then top with a layer of lasagne sheets (breaking to fit).
Step 8
Spread half the reserved bolognese over the pasta, pour over another third of béchamel, and add another layer of lasagne sheets.
Step 9
Finish with remaining bolognese, top with final lasagne sheets, and pour over remaining béchamel. Sprinkle with grated mozzarella.
Step 10
Cover the pan loosely with foil and bake for 25 minutes. Remove foil and bake for another 10–15 minutes until golden and bubbling.
Step 11
Let stand for 10 minutes before serving. Garnish with fresh basil if desired.

Zusatztipps für die Zubereitung

To ensure the best results, use a high-quality ovenproof skillet and a whisk for the béchamel to keep it smooth. Covering the pan with foil during the first part of the bake is essential to trap steam and soften the lasagne sheets perfectly.

Varianten und Anpassungen

For a vegan version, simply substitute the dairy components with plant-based butter, milk, and cheese. If you're looking for extra depth, try adding a splash of red wine to the bolognese sauce while it simmers with the tomatoes.

Serviervorschläge

This rich lasagne pairs beautifully with a crisp green salad or warm garlic bread. It contains gluten, dairy, and soy, so for allergen-free versions, consider gluten-free pasta and tamari as a substitute for soy sauce.

A close-up slice of One-Pan Smoky Veggie Lentil Lasagne reveals layers of lentils, mushrooms, and creamy béchamel. Save
A close-up slice of One-Pan Smoky Veggie Lentil Lasagne reveals layers of lentils, mushrooms, and creamy béchamel. | tastychuck.com
A close-up slice of One-Pan Smoky Veggie Lentil Lasagne reveals layers of lentils, mushrooms, and creamy béchamel. Save
A close-up slice of One-Pan Smoky Veggie Lentil Lasagne reveals layers of lentils, mushrooms, and creamy béchamel. | tastychuck.com
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Whether you are cooking for family or preparing a meal for guests, this One-Pan Smoky Veggie Lentil Lasagne offers a sophisticated, flavorful, and low-maintenance solution for a satisfying vegetarian dinner.

Recipe Guide

Can I make this dish ahead of time?

Yes, assemble the entire dish up to 24 hours in advance and refrigerate. Bake for an additional 10-15 minutes if baking straight from the refrigerator.

Can I freeze leftovers?

Absolutely. Cut into portions, wrap tightly, and freeze for up to 3 months. Thaw overnight in the refrigerator before reheating at 180°C for 20-25 minutes.

What can I use instead of lasagne sheets?

You could use fresh pasta sheets, crepes, or even thinly sliced vegetables like courgette or aubergine for a lighter, gluten-free option.

How do I know when the lentils are cooked?

Red lentils typically take 15-20 minutes to simmer. They're done when tender but still hold their shape, not mushy. The sauce should also be thickened.

Can I add other vegetables?

Certainly. Spinach, aubergine, or butternut squash work beautifully. Add hearty vegetables when sautéing, and delicate greens like spinach just before layering.

Why use soy sauce in a vegetarian dish?

Soy sauce adds umami depth and richness, enhancing the savory flavors typically provided by meat in traditional lasagne. You can substitute with tamari or miso paste.

One-Pan Smoky Veggie Lentil Lasagne

Hearty layers of smoky lentils, vegetables, and creamy béchamel baked together in one pan for a comforting Italian-inspired meal.

Prep duration
25 min
Heat time
40 min
Full duration
65 min
Created by Chuck Harrison


Skill level Medium

Heritage Italian-Inspired

Output 6 Portions

Nutrition Labels Meat-free

What you'll need

Vegetable Bolognese

01 2 tablespoons olive oil
02 1 large onion, finely chopped
03 2 garlic cloves, minced
04 1 medium carrot, diced
05 1 red bell pepper, diced
06 9 ounces mushrooms, chopped
07 2 medium zucchini, diced
08 1 teaspoon smoked paprika
09 1 teaspoon dried oregano
10 1/2 teaspoon dried thyme
11 1/2 teaspoon chili flakes (optional)
12 1 tablespoon tomato paste
13 14.5 ounces canned chopped tomatoes
14 1 tablespoon soy sauce
15 2/3 cup dried red lentils, rinsed
16 2 cups vegetable stock
17 Salt and black pepper, to taste

Béchamel Sauce

01 1.5 tablespoons unsalted butter
02 1/3 cup all-purpose flour
03 2.5 cups whole milk
04 1/4 teaspoon ground nutmeg
05 2/3 cup grated mature cheddar or vegetarian hard cheese
06 Salt and white pepper, to taste

Assembly

01 9-12 no-boil lasagne sheets
02 2 ounces grated mozzarella or vegetarian cheese
03 Fresh basil leaves, to serve (optional)

Method

Phase 01

Preheat Oven: Preheat the oven to 400°F.

Phase 02

Sauté Aromatics: Heat olive oil in a large ovenproof deep skillet over medium heat. Add onion and garlic, sauté for 2 minutes until fragrant.

Phase 03

Cook Vegetables: Add carrot, red pepper, mushrooms, and zucchini. Cook for 5-6 minutes until softened and beginning to brown.

Phase 04

Add Spices and Tomato Paste: Stir in smoked paprika, oregano, thyme, chili flakes, and tomato paste. Cook for 1 minute to bloom the spices.

Phase 05

Simmer Lentil Sauce: Add canned tomatoes, soy sauce, red lentils, and vegetable stock. Bring to a simmer, cover, and cook for 15-20 minutes until lentils are tender and sauce has thickened. Season with salt and pepper.

Phase 06

Prepare Béchamel: Melt butter in a medium saucepan over medium heat. Whisk in flour and cook for 1 minute. Gradually whisk in milk, stirring constantly until thickened, about 5 minutes. Remove from heat and stir in nutmeg, cheese, salt, and white pepper.

Phase 07

First Layer: Remove half the vegetable lentil mixture from the pan and set aside. Layer one-third of the béchamel over the remaining sauce in the pan, then arrange lasagne sheets on top, breaking to fit as needed.

Phase 08

Second Layer: Spread half the reserved lentil mixture over the pasta, pour another third of béchamel, and add another layer of lasagne sheets.

Phase 09

Final Assembly: Top with remaining lentil mixture, final layer of lasagne sheets, and remaining béchamel. Sprinkle with grated mozzarella.

Phase 10

Bake Covered: Cover pan loosely with foil and bake for 25 minutes.

Phase 11

Brown and Finish: Remove foil and bake for another 10-15 minutes until golden brown and bubbling. Let stand for 10 minutes before serving. Garnish with fresh basil if desired.

Kitchen tools

  • Large ovenproof frying pan or deep skillet
  • Medium saucepan
  • Whisk
  • Chopping board and knife
  • Aluminum foil

Allergy alerts

Always review ingredients for potential allergens and seek professional medical guidance if unsure
  • Contains gluten (flour, lasagne sheets), milk, and cheese (dairy).
  • Contains soy (soy sauce).
  • For allergen-free versions, use gluten-free lasagne sheets and flour, dairy-free alternatives, and tamari instead of soy sauce.
  • Always check product labels for hidden allergens.

Nutrition breakdown (per portion)

Values shown are estimates only - consult healthcare providers for specific advice
  • Energy: 410
  • Fats: 14 g
  • Carbohydrates: 51 g
  • Proteins: 19 g