01 -
Preheat your oven to 400 degrees. Place the frozen tater tots in an 11x13 inch baking dish and put them in the oven to start cooking while you make the filling.
02 -
In a large skillet over medium heat, brown the ground beef with the diced onion. Drain the grease if you want to.
03 -
Season the beef with the garlic powder, onion powder, salt, and pepper. Add the Thousand Island dressing, ketchup, and dill pickle relish. Mix everything together well.
04 -
Add the cubed Velveeta cheese to the beef mixture and stir until it's completely melted and creamy.
05 -
Take the partially cooked tater tots out of the oven and remove them from the baking dish. Spread the meat mixture into the bottom of the dish, then arrange the tater tots on top in a single layer.
06 -
Bake for 20 minutes.
07 -
Remove the casserole from the oven and sprinkle the grated sharp cheddar cheese over the top. Return to the oven and bake for 10 to 15 more minutes, until the cheese is golden brown and bubbly.
08 -
Top with shredded lettuce and drizzle with extra Thousand Island dressing. This tastes just like a Big Mac in casserole form!