Beef with cheddar

8 ounces rotini noodles 1 lb ground beef 1 medium onion , chopped 1 clove garlic , minced 1 teaspoon oregano 1 teaspoon salt 1 teaspoon pepper 2 (15 ounce)[...]

Kosher salt 3 cups wide egg noodles (about 5 ounces) 1 1/2 cups sour cream 1/2 cup grated Parmesan cheese 1 tsp olive oil 1 lb. ground beef 1 red bell pepper[...]

2 TBSP vegetable oil , divided Didn't use this 1 lb lean ground beef I used about a pound and a half 2 onions finely chopped I used much less 4 stalks celery[...]