Step 1: Preheat oven to 350.
Step 2: In a 9x13 pan pour spaghetti sauce, enough to thinly cover the bottom.
Step 3: Place all of the sausage at the bottom of the pan on top of the sauce.
Step 4: Add a layer of pasta.
Step 5: Place an even layer of pepperoni over the pasta.
Step 6: Sprinkle half of the cheese over the pepperoni.
Step 7: Add a layer of pasta.
Step 8: Finish it off with the rest of the sauce.
Step 9. Add the rest of the cheese.
Step 10: Bake for 25 minutes or until heated through and the cheese is melted.