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.
Place in crock pot.
Add sauce & diced tomatoes
Add oregano, garlic powder, salt & pepper, oil, sugar & stir well.
Cook on low 7-8 hours or high 4-6 hours.
Salt lrg 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)
Add penne & stir well.
Top with 1 cup shredded cheese.
Continue to cook on high for 15-20 minutes or until pasta is tender & heated & cheese has melted
Serve w/ Parmesan cheese
.