Stuffed Shells in Tomato and Sausage Sauce

Name: Stuffed Shells in Tomato and Sausage Sauce
Ingredients: 12-14 jumbo shells; 1 pound loose sweet Italian sausage; 1 small yellow onion chopped finely; 3 cloves of garlic finely minced; 1/3 cup tomato paste; 1 1/2 cups chicken broth; 1 tablespoon Italian seasoning; pinch of chili powder; 1 teaspoon granulated sugar; salt and black pepper; 1 cup ricotta cheese; 1/4 cup grated parmesan cheese + 2 tablespoons; 1 teaspoon fresh oregano chopped; 1 large egg white; 1 tablespoon fresh parsley chopped