Hamburger corn casserole

I used to request this on special occasions as a kid. It was a real shocker to me the day I figured out that it isn't fancy or expensive to make :)

1/2 pound ground beef, browned and drained
1 chopped onion
1/2 cup frozen peas
1 small can corn
1/2 cup sour cream (crême fraîche), or more to taste
2-3 servings cooked pasta
1/ tsp beef boullion

Brown the ground beef and drain fat. Put meat to the side and brown onions in the same pan.

Toss together all ingredients. Pour into a baking dish and bake at 350° until hot all the way through.

Serve on fancy occasion plates.