INGREDIENTS
2 cups
Basic Marinara, divided
Cooking spray
2 1/2 cups
part-skim ricotta cheese
1/2 cup
grated fresh Parmesan cheese
1/2 tsp
onion powder
1/2 tsp
dried oregano
1/4 tsp
salt
1/4 tsp
freshly ground black pepper
1 10 ounce package
frozen chopped spinach, thawed, drained, and squeezed dry
1
large egg yolk
1
garlic clove, minced
24
cooked jumbo pasta shells