Christina's Spicy Spaghetti with Sausage

original recipe

3/4 pound sweet Italian sausage
1 medium onion
6 cloves garlic
1 recipe Scalloped Tomatoes, prepared but not baked
6 oz fresh spinach
1 pound spaghetti
1/2 teaspoon red pepper flakes (optional)

Cook spaghetti according to package directions and set aside.

Meanwhile, brown sausage in large skillet. With 3-5 minutes remaining, add onion and cook until soft. Add garlic and cook 1 minute more. Stir in scalloped tomatoes and heat through. Stir in spinach until wilted. Stir in cooked spaghetti and heat through. Add red pepper flakes if desired. Serve.