The Best Manicotti Recipe! (Intermediate level)

Ingredients:
1 box Manicotti Pasta
1 jar marinara sauce
1 bunch spinach, chopped
8 oz ricotta cheese
3 cups shredded mozzarella
1 cup shredded parmesan cheese
1 shallot, finely diced
6-8 gloves garlic, chopped
1 egg, beaten
1 Tbs dried basil
1 Tbs dried oregano
1/2 tsp red pepper flake
salt
pepper
oil