01 -
Brown ground beef, diced onion, and minced garlic in a skillet over medium heat. Drain excess grease if necessary.
02 -
Add tomato paste to the skillet and cook for 2–3 minutes. Stir in garlic herb seasoning, Worcestershire sauce, bouillon, and water. Simmer on low heat.
03 -
Microwave potatoes for about 8 minutes or parboil them for approximately 5 minutes until slightly tender. Toss with olive oil and onion soup mix. Spread evenly in a 9×13 baking dish.
04 -
Layer the beef mixture over the potatoes evenly.
05 -
Whisk together cream of mushroom soup, milk, and black pepper. Pour this mixture over the casserole evenly.
06 -
Cover the dish with foil and bake in a preheated oven at 375°F for 35 minutes.
07 -
Remove the foil. Top the casserole with grated cheese and crispy fried onions. Bake uncovered for an additional 7–10 minutes.
08 -
Allow the casserole to sit for 5 minutes before serving.