1 teaspoon olive oil
1 pound hot Italian sausage
1 pound mild Italian sausage
2 sweet onions
chopped
5 cloves garlic
minced
2 teaspoons dried oregano
1 teaspoon red pepper flakes
1 (6 ounce) can tomato paste
1 (48 ounce) can beef broth
1 (14.5 ounce) can diced tomatoes with basil
1 (14.5 ounce) can crushed tomatoes with basil
½ cup sweet wine
2 sprigs fresh basil
or to taste
salt and ground black pepper to taste
1 (8 ounce) container ricotta cheese
or more to taste
½ cup shredded mozzarella cheese
½ cup grated Parmesan cheese
or more to taste
1 (16 ounce) package farfalle (bow tie) pasta