Add tomato paste, can of diced tomatoes (including juice), and water to skillet. Add oregano, Italian seasoning, basil, garlic powder, salt, pepper and red pepper flakes. Add sliced mushrooms. Stir all ingredients well, to combine.
While sauce is cooking, prepare the pasta of your choice according to package directions. Drain pasta, then serve with spaghetti sauce ladled over the top. Garnish with Parmesan cheese, if desired, and serve HOT!
Caloric calculation does not include pasta of your choice. It also does not include optional Parmesan cheese topping (optional).
Easy Spaghetti Sauce With Italian Sausage https://www.thegratefulgirlcooks.com/spaghetti-sauce-italian-sausage/