Preheat the oven to 350 degrees F.
Set sour cream on the counter to come to room temperature while preparing this recipe.
In a medium sauté pan, add ground beef and onions and cook over medium high heat until fully cooked.
Drain off excess grease from the pan.
Add in taco seasoning.
Bring to a simmer and simmer for 5 minutes, stirring occasionally.
In a 9x13 casserole dish first spread the refried beans. Then, spread sour cream over refried beans. Top with ground beef mixture. Lastly, top with cheese.
Bake for 15 minutes or until the cheese is melted and the casserole is hot in the middle.
Top with crumbled tortilla chips and black olives.
-Sky’s the limit with this casserole. You can add any of your favorite toppings including avocado, salsa, Pico, or extra sour cream. And don’t forget to add a little sprinkle of Pluck on top!
-This casserole would also be a great introduction to organ meats so consider adding ground calf liver in place of ½ lb. of the ground beef.