1 pound extra-lean ground beef
¼ cup finely chopped onion
2 tbsp tomato paste
2 tsp yellow mustard
2 eggs
½ cup heavy cream
1 cup shredded Cheddar cheese
1 medium tomato, chopped
3 slices bacon, cooked and crumbled
2 green onions, sliced
salt, black pepper to taste
Find it online: https://ketopots.com/keto-cheeseburger-casserole