2Prepare the cheese blend by mixing ricotta cheese, heavy cream, egg, Italian cheese blend, mozzarella cheese, salt, pepper, onion powder, garlic powder, Italian seasoning, and MSG in a bowl.
3Make the Marry Me sauce by sautéing diced onion, shallot, and Italian sausage in butter and olive oil until browned.
4Add tomato paste, sun-dried tomatoes, minced garlic, salt, pepper, red pepper flakes, oregano, basil, thyme, parsley, chicken broth, and heavy cream to the sausage mixture.
5Simmer and reduce the sauce to concentrate the flavor. Add grated parmesan cheese.
6Combine the Marry Me sauce with the cooked and cheese-coated pasta.
7Transfer the mixture to a baking dish, top with shredded cheese, and bake uncovered at 375°F (190°C) for 30 minutes.
8Broil for 2-3 minutes to get a bubbly golden brown crust.