Layered Vegetable Lasagna with Spinach and Ricotta

By Lauren Mitchell, Test Kitchen Director · Reviewed by AislePrompt Editorial · Published 2026-07-31 · Updated 2026-07-31

A hearty vegetarian lasagna layered with spinach, ricotta, and a rich tomato sauce, baked to golden perfection. This Italian-inspired vegetarian recipe, ready in about 70 minutes, pairs lasagna noodles, ricotta cheese, shredded mozzarella cheese for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 420 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 50 min Serves 6 Italian cuisine 420 cal/serving

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Ingredients

9 sheets, no-boil lasagna noodles
1 1/2 cups ricotta cheese
2 cups shredded mozzarella cheese
1/2 cup, grated Parmesan cheese
4 cups, roughly chopped fresh spinach
2 tbsp olive oil
3, minced garlic cloves
1 medium, finely diced onion
28 oz canned crushed tomatoes
1 tsp dried oregano
1 tsp dried basil
1 tsp salt
1/2 tsp black pepper
1/4 tsp (optional) red pepper flakes

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Equipment for this recipe

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Instructions

Step 1: Preheat oven to 375°F. Heat 2 tbsp olive oil in a large skillet over medium heat. Add 1 medium finely diced onion and 3 minced garlic cloves, sautéing for 4-5 minutes until softened and fragrant.
Step 2: Stir in 28 oz canned crushed tomatoes, 1 tsp dried oregano, 1 tsp dried basil, 1 tsp salt, 1/2 tsp black pepper, and 1/4 tsp red pepper flakes if using. Simmer the sauce uncovered for 15 minutes until slightly thickened.
Step 3: Meanwhile, in a bowl, combine 1 1/2 cups ricotta cheese with 4 cups roughly chopped fresh spinach. Mix well.
Step 4: In a 9x13-inch baking dish, spread a thin layer of tomato sauce. Layer 3 lasagna noodles on top, then spread half the ricotta-spinach mixture, 2/3 cup tomato sauce, and sprinkle with 2/3 cup shredded mozzarella cheese. Repeat the layering once more.
Step 5: Finish with the last 3 noodles, remaining sauce, 2/3 cup shredded mozzarella, and 1/2 cup grated Parmesan cheese. Cover with foil and bake for 30 minutes.
Step 6: Remove foil and bake uncovered for an additional 15 minutes until bubbly and golden on top. Let rest for 10 minutes before slicing.

Frequently asked questions

How long does Layered Vegetable Lasagna with Spinach and Ricotta take to make?

Total time is about 70 minutes (20 min prep + 50 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Layered Vegetable Lasagna with Spinach and Ricotta?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep lasagna noodles from drying out.

Can I substitute ingredients in Layered Vegetable Lasagna with Spinach and Ricotta?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Layered Vegetable Lasagna with Spinach and Ricotta for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Layered Vegetable Lasagna with Spinach and Ricotta vegetarian?

Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.