Sausage Tomato Pasta

From See Jane in the Kitchen

1 package penne, cooked according to package
1 pound mild italian sausage
1 cup heavy whipping cream
1 large can diced tomatoes with italian seasonings
1/2 onion, chopped
2 TBS olive oil
1 clove garlic, minced

1 cup shredded parmesan cheese
italian seasoning

Cook onion, sausage, and garlic with olive oil. Drain fat. Add heavy cream and simmer for 10 minutes, stirring occasionally. Add can of tomatoes and italian seasoning to taste. Sprinkle with parmesan cheese, heat and toss with pasta.