Spinach and Cheese Stuffed Shells

jumbo pasta shells (, cooked according to directions listed on package)

. fresh spinach (, steamed just until wilted, squeezed dry with paper towels and chopped*)

. Ricotta cheese

large egg

chopped fresh basil

chopped fresh thyme

garlic (, finely minced)

mozzarella cheese, finely shredded, divided

Parmesan cheese, finely shredded

Salt and freshly ground black pepper (, to taste)

marinara sauce (, homemade or store-bought (I used this recipe))

red pepper flakes (, optional)