1. Preheat oven to 400° F.
2. Sauté sausage in skillet over medium high heat for 4 minutes.
3. Add pepper and onions and cook an additional 3 minutes, then stir in sauce.
4. Arrange lasagna roll ups in baking dish.
5. Pour sauce over lasagna.
6. Cover loosely with foil and bake1 hour.