A layered, saucy bake of zucchini, eggplant, bell pepper, and spinach folded into a garlicky tomato sauce, perfect for easy weeknight dinners or meatless Mondays.
Prep Time 15 minutesminutes
Cook Time 30 minutesminutes
Total Time 45 minutesminutes
Serving Size 6servings
Ingredients
Vegetable Ingredients
1zucchini, sliced
1bell pepper, chopped (any color)
1eggplant, dicedShort on eggplant? Substitute with another zucchini or mushrooms.
2cupsspinach (loosely packed)
1cangarlicky tomato sauce (about 14–15 oz)
1onion, chopped
2cloves garlic, minced
Salt and pepper to taste
Olive oil (for sautéing)
Grated cheese (optional — Parmesan, mozzarella, or a melty blend)For a vegan option, skip the cheese or use vegan shreds.
Instructions
Preparation
Preheat the oven to 375°F (190°C). Lightly oil a 9x13-inch or similar baking dish.
Heat 1–2 tablespoons olive oil in a large skillet over medium heat. Add the chopped onion and minced garlic; sauté until translucent and fragrant, about 3–4 minutes.
Add the zucchini, chopped bell pepper, and diced eggplant. Cook, stirring occasionally, until the vegetables are softened and beginning to brown, about 6–8 minutes. Season with salt and pepper.
Stir in the spinach and cook just until wilted, about 1–2 minutes. Remove the pan from heat. Taste and adjust seasoning.
Assembly
Spread a thin layer of the garlicky tomato sauce across the bottom of the prepared baking dish.
Spoon half (or a third, depending on how many layers you want) of the sautéed vegetables evenly over the sauce. Add more sauce over the veggies.
Repeat layers until all the vegetables and sauce are used, finishing with a generous layer of sauce on top.
If using, sprinkle grated cheese evenly across the top.
Baking
Bake for 25–30 minutes, until the casserole is hot and bubbly and the cheese (if used) is melted and lightly golden.
Let rest 5–10 minutes before serving so the layers set and slice cleanly.
Notes
This casserole can be served as a main dish or paired with a crisp salad, or over grains like rice or quinoa. It stores well in the fridge or freezer.