Vegan Lasagna Recipe

Name: Vegan Lasagna Recipe
Prep time: 30 min
Cook time: 1 h
Total time: 1 h 30 min
Cuisine: European, Italian, Mediterranean
Ingredients: 1 batch vegan ricotta; 2 tablespoons olive oil ((or preferred oil)); 1 large onion (, finely diced); 3-4 cloves garlic (, minced); 1 pound mushrooms (, sliced or diced); 1 teaspoon dried parsley; 1 teaspoon dried oregano; 1/4 teaspoon crushed red pepper flakes (, optional); 12 cups fresh spinach ((loosely packed) rough chopped (about 14 oz)); Salt (, to taste); Fresh cracked pepper (, to taste); 2 25 ounce jars of marinara sauce (, a thicker variety (*see note)); 15 lasagna noodles ((*see note))