Vegetable Lasagna
Recipe Tested & Approved by Mia Hartwell
Every recipe is developed, cooked, and tested by Mia in a real home kitchen using everyday ingredients to ensure reliable, repeatable results.
Layers of noodles, a vegetable-packed marinara, creamy ricotta, and melted mozzarella. A hearty, satisfying meatless lasagna that even devoted carnivores go back for.
By Mia HartwellUpdated October 26, 2025
Developed using tested cooking methods — cook to the temperatures given and adjust times to your equipment.
Why you'll love this recipe
- A hearty, vegetable-packed meatless lasagna
- 22g of protein per serving
- Creamy ricotta layers and a gooey cheese top
- Make-ahead and freezer-friendly
Vegetable Lasagna
1 hr 20 min totalServes 8
Nutrition (per serving)
Values are estimates. See our disclaimer for details.
- Calories
- 440kcal
- Protein
- 22g
- Carbs
- 46g
- Fat
- 19g
- Fiber
- 6g
- Sugar
- 11g
Step-by-Step Instructions
- 1
Preheat the oven to 375°F (190°C). Cook the noodles 1 minute short of al dente, then drain and lay flat.
- 2
Heat the olive oil in a skillet and saute the zucchini, pepper, and mushrooms 6-7 minutes until softened and their liquid evaporates. Add the garlic and spinach until wilted. Stir in the marinara and season.
- 3
Mix the ricotta, egg, half the Parmesan, salt, and pepper.
- 4
Spread a little sauce in a 9x13-inch dish. Layer noodles, ricotta, vegetable sauce, and mozzarella. Repeat, ending with sauce and mozzarella.
- 5
Cover with foil and bake 30 minutes, then uncover and bake 15-20 minutes until bubbling and golden.
- 6
Rest 15 minutes before slicing so the layers set.
Pro Tips for the Best Results
- Cook the vegetables until their moisture evaporates so the lasagna isn't watery.
- The egg in the ricotta helps it set into creamy layers instead of running out.
- Undercook the noodles by a minute since they finish in the oven.
- The 15-minute rest is essential for clean, sliceable layers.
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How to Cook Vegetable Lasagna
New to this dish? Follow along with the detailed guide below — we break down each stage so you get perfect results the very first time.
Cook out the vegetable moisture
Saute the zucchini, peppers, and mushrooms until their liquid evaporates. Vegetables release a lot of water, and skipping this step is the number one cause of a watery, sloppy lasagna.
Layer with set ricotta
The egg mixed into the ricotta helps it firm up into distinct creamy layers rather than running out. Build the layers with sauce on every noodle so they cook through and stay tender.
Bake covered, then brown and rest
Baking covered first heats it through without drying the top; uncovering browns the cheese. The 15-minute rest is non-negotiable — it lets the layers set so the lasagna slices into neat portions instead of sliding apart.
Storage & Make-Ahead
Refrigerate leftovers in an airtight container for up to 4 days; reheat covered. Cooked lasagna freezes well for up to 2 months.
Serving Suggestions
This vegetable lasagna pairs beautifully with a crisp green salad, crusty bread, or your favorite grain. Add a simple side of roasted vegetables for a complete, satisfying dinner the whole family will enjoy.
Frequently Asked Questions
How do I keep it from being watery?+
Cook the vegetables until their liquid evaporates, don't over-sauce, and let the lasagna rest before slicing.
Can I make it ahead?+
Yes — assemble it, cover, and refrigerate up to a day or freeze up to 2 months. Add 10-15 minutes baking from cold.
Can I use no-boil noodles?+
Yes — they're forgiving; just make sure each layer is well covered with sauce so they cook through.
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