Tortelloni in Pink Sauce

Playing around with some refrigerator and pantry items for this dish. The sauce is a chopped red onion, and minced garlic sauteed in butter. One can of diced tomatoes with the juice. About 1 cup of heavy cream, Salt, pepper and oregano to taste. Summer until thickened and toss with fresh cheese tortelloni, cooked al dente, and topped with grated Parmesan cheese.