Lentil and Vegetable Casserole

Name: Lentil and Vegetable Casserole
Prep time: 20 min
Cook time: 30 min
Total time: 1 h 20 min
Yield: 4 servings
Cuisine: american
Ingredients: 1 cup brown lentils (rinsed); 2.5 cup water (for cooking lentils); 2 pcs carrot (medium, diced); 2 pcs celery (stalks, diced); 1 pcs onion (medium, diced); 3 pcs garlic (cloves, minced); 1 pcs zucchini (medium, diced); 1 pcs tomato (large, diced); 2 tbsp tomato paste; 1 tsp dried thyme; 1 tsp dried oregano; 1 pinch black pepper; 0.5 tsp salt; 2 tbsp olive oil; 0.25 cup breadcrumbs; 2 tbsp parmesan cheese (grated); 2 tbsp parsley (fresh, chopped, for garnish)

RATING

4.4/5(62)

TASTE SCORE

8/10

A cozy, bubbling casserole packed with earthy lentils and tender vegetables under a golden, herb-flecked crust. This hearty one-dish meal is pure comfort food, perfect for chilly evenings when you need something warm and satisfying from the oven.

PREP

20m

COOK

30m

SERVES

1 CUP

319 cal

SERVINGS

METHOD · 8 STEPS

prep
Preheat the oven and prep the lentils.
1.Preheat oven to 375°F (190°C).
2.Rinse 1 cup brown lentils under cold water.
3.In a saucepan, combine lentils with 2.5 cups water and 0.25 tsp salt.
boil · ~25 min
Cook the lentils.
1.Bring the saucepan to a boil over high heat.
2.Reduce heat to low, cover, and simmer for 20-25 minutes until lentils are tender but still hold their shape.
3.Drain any excess liquid and set aside.
TIPDon't let the lentils get mushy — they should be just tender since they'll cook further in the oven.
saute · ~8 min
Sauté the aromatic vegetables.
1.Heat 2 tbsp olive oil in a skillet over medium heat.
2.Add diced onion, carrot, and celery. Cook until softened, about 5-7 minutes.
3.Add minced garlic and tomato paste. Sauté for 1 minute until fragrant.
TIPCook the tomato paste for a full minute — it deepens the flavor and removes the raw tinny taste.
mix
Combine the casserole filling.
1.In a large bowl, combine the cooked lentils, sautéed vegetables, diced zucchini, and diced tomato.
2.Add dried thyme, dried oregano, black pepper, and the remaining 0.25 tsp salt.
3.Stir well to distribute all seasonings evenly.
assemble
Assemble the casserole.
1.Transfer the lentil-vegetable mixture into a greased 9-inch baking dish.
2.Spread it out evenly with the back of a spoon.
3.In a small bowl, mix breadcrumbs with grated parmesan cheese.
4.Sprinkle the breadcrumb mixture evenly over the top.
TIPPat the breadcrumb topping gently with your fingers so it adheres and forms a better crust.
bake · ~30 min
Bake the casserole until golden and bubbling.
1.Place the dish on the center rack of the preheated oven.
2.Bake for 25-30 minutes, until the top is golden brown and the edges are bubbling.
TIPIf the top browns too quickly, tent loosely with aluminum foil for the last 10 minutes.
rest · ~5 min
Rest the casserole before serving.
Let the casserole rest at room temperature for 5 minutes. This allows it to set up and makes serving easier.
garnish
Garnish with fresh parsley and serve hot.
Scatter chopped fresh parsley over the top and scoop generous portions onto plates.

PRO TIPS

What to keep in mind.

7 tips from the recipe — small details that make a real difference to the final dish.

1
Sauté the tomato paste until it darkens slightly — this caramelization builds a deeper, savory base for the casserole.
2
Do not overcook the lentils in step 2; they should be tender with a slight bite since they will soften further while baking.
3
Pat the breadcrumb topping gently with your fingers before baking to help it form a cohesive, golden crust.
4
If the top browns too quickly, tent the dish loosely with foil for the last 10 minutes of baking.
5
Let the casserole rest for 5 minutes after baking; this allows the filling to set up and makes serving cleaner.
6
Store leftovers in an airtight container in the fridge for up to 4 days; the flavors actually deepen overnight.
7
To reheat, cover with foil and warm in a 350°F oven for 15 minutes, or microwave individual portions.

RECIPE VARIATIONS

Adapt it for your goals.

vegan

Vegan

Omit the Parmesan cheese from the topping and use 2 tablespoons of nutritional yeast mixed with the breadcrumbs for a cheesy, dairy-free flavor that keeps the crust golden and savory.

add protein

Add protein

Stir in 1 cup of cooked, crumbled sausage or 1 can of drained chickpeas with the vegetables for extra heartiness — perfect for those who want a more satiating, protein-forward meal.

gluten free

Gluten-free

Replace the regular breadcrumbs with gluten-free panko or almond flour — the topping will still crisp up nicely, and the dish remains fully gluten-free.

low oil

Low-oil

Sauté the vegetables in 2-3 tablespoons of water or vegetable broth instead of olive oil, and use oil-free breadcrumbs for the topping — this cuts down on fat while keeping the dish moist and flavorful.

spicy twist

Spicy twist

Add 1/2 teaspoon of red pepper flakes or a diced jalapeño with the garlic to bring gentle heat that complements the earthy lentils and sweet vegetables.

HEALTH BENEFITS

Why this is on our healthy list.

✓

Rich in Plant-Based Protein

Brown lentils are an excellent source of plant protein, making this casserole a satisfying main dish that supports muscle maintenance and keeps you full longer.

✓

High in Dietary Fiber

Lentils, carrots, celery, and zucchini provide a hearty dose of soluble and insoluble fiber, promoting healthy digestion and steady blood sugar levels.

✓

Packed with Vegetables

This dish delivers a colorful variety of vegetables — carrots, celery, zucchini, onion, and tomato — offering a broad spectrum of vitamins, minerals, and antioxidants.

✓

Low in Saturated Fat

With olive oil as the primary fat and no heavy cream or cheese besides a light Parmesan topping, the casserole is naturally low in saturated fat while still being rich in flavor.

QUESTIONS?