2 tsp. olive oil
1-1/2 lbs. Italian sausage
3 c. chopped onions
4 garlic cloves, minced
2 tsp. dried oregano
1/2 tsp. crushed red pepper flakes
2 T. tomato paste
1 28-oz. can fire roasted diced tomatoes
2 bay leaves
6 c. chicken stock
8 oz. mafalda or fusilli pasta
1/2 c. finely chopped fresh basil leaves
salt and freshly ground black pepper, to taste
8 oz. ricotta
1/2 c. grated Parmesan cheese
1/4 tsp. salt
pinch of freshly ground pepper
2 c. shredded mozzarella cheese