For alfredo spaghetti squash, you will need:

Ingredients:

1 medium spaghetti squash, cooked and separated into strands
1 cup sour cream
1/2 cup shredded mozzarella cheese
1/4 cup grated Parmesan cheese
2 cloves garlic, finely minced
1/4 teaspoon salt
1/4 teaspoon black pepper

Instructions:

Combine everything except the squash in a saucepan and cook at medium heat while whisking. Continue to do this until smooth and creamy. The constant whisking prevents it from scalding and burning. Add the spaghetti squash strands to the sauce and stir until well coated in sauce. Remove from heat and serve with bread and salad, baby spinach goes well with this dish. You can substitute reduced fat sour cream and low fat cheese to accommodate your diet choices and still get the same great results.