1. Cook sausage in frying pan on medium heat until browned & crumbly Drain well.
OR
Cook sausage whole in casings; remove and dry, then cut into halved circles.
2. Place in crock pot. Add sauce & diced tomatoes Add oregano, garlic powder, salt & pepper, oil, sugar & stir well.
3. Cook on low 7-8 hours or high 4-6 hours.
4. Salt large pot of water & cook 1/2-3/4 lb of penne 4-5 minutes less than directions on box call for (about 7 or 8 minutes)
5. Add penne & stir well.
6. Top with 1 cup shredded cheese.
7. Continue to cook on high for 15-20 minutes or until pasta is tender & heated & cheese has melted