→ Main Ingredients
01 -
2 tablespoons olive oil
02 -
1 1/2 cups chopped yellow onion
03 -
1 red bell pepper, chopped
04 -
8 ounces cremini mushrooms, chopped
05 -
2 medium zucchini, chopped into 1/2-inch pieces
06 -
4 cloves garlic, minced
07 -
48 ounces marinara sauce
08 -
1 teaspoon dried Italian seasoning
09 -
Salt and pepper, to taste
10 -
2 pinches crushed red pepper flakes, or to taste
11 -
1/4 cup chopped fresh parsley
12 -
5 ounces baby spinach, coarsely chopped
13 -
1 egg
14 -
1 cup ricotta cheese (8 ounces)
→ Additional Ingredients
15 -
9 oven-ready (no-boil) lasagna noodles
16 -
16 ounces shredded mozzarella cheese (about 4 cups)
17 -
1/2 cup grated Parmesan cheese
18 -
Chopped fresh basil or parsley, for serving