Make ahead: you can make this earlier in the day; cook the noodles a few minutes less than the package says, store the full pot in the fridge, and reheat gently with a splash of water. Slow cooker method is in the post below. Substitutions: use turkey or chicken sausage for a lighter dish, any pasta shape (gluten-free works too), and add extra veggies like mushrooms, zucchini, kale, or cherry tomatoes.