1-First step: Heat the oven and prep the baking dish Preheat your oven to 375 degrees Fahrenheit. Lightly grease an 8 or 9-inch baking dish with non-stick cooking spray or a thin layer of oil. This helps the casserole release easily and makes cleanup much easier later.

2-Second step: Brown the beef Place a skillet over medium-high heat and add the 1 pound of lean ground beef. Cook it until browned, breaking it apart with a spoon as it cooks. Once the beef is done, drain off any excess fat. Using lean beef helps keep the dish from getting too greasy, which is especially nice if you are making this for a weeknight meal.

3-Third step: Cook the onion and garlic Add the diced onion to the skillet with the beef and sauté for 4 to 5 minutes until the onion turns translucent. Stir in the minced garlic and cook for 1 more minute. The onion softens and adds sweetness, while the garlic gives the casserole that cozy homemade smell.

4-Fourth step: Season the meat mixture Stir in 1 tablespoon Worcestershire sauce, then season with salt and pepper to taste. This is a good time to taste the mixture and decide whether it needs a little more seasoning. Seasoning this layer well helps the whole casserole taste better, since the flavors spread through the dish as it bakes.

5-Fifth step: Transfer to the baking dish Spoon the beef mixture into the prepared baking dish and spread it out evenly. A flat layer helps the rest of the ingredients settle on top without sliding around. If you are cooking for a larger group, you can double the recipe and use a 9×13-inch dish, but you may need a little extra bake time.

6-Sixth step: Add the soup and green beans Spread the 10.75 ounces of condensed cream of mushroom soup over the beef layer. Then add the drained green beans and season them lightly with salt and pepper. The soup creates a creamy middle layer that keeps the casserole moist, while the green beans add a little texture and color.

7-Seventh step: Add the cheese and tots Sprinkle the 2 cups of shredded cheddar cheese over the green beans. After that, arrange the 2 cups of frozen tater tots on top in an even layer. If you want the crispiest top, keep the tots frozen until the last minute and do not thaw them first. This helps them bake up golden instead of soft.

8-Eighth step: Bake until golden Place the casserole in the oven and bake for 35 to 40 minutes. You are looking for golden brown tater tots and fully melted cheese. If your oven runs hot, check it around 30 minutes so the top does not brown too quickly. For extra crispness, you can broil it briefly at the end, but keep a close eye on it.

9-Final step: Serve right away Take the casserole out of the oven and let it sit for about 5 minutes before serving. This short rest helps the layers settle a bit, so serving is easier. Then spoon it onto plates while it is hot and bubbly. It pairs nicely with a simple salad, steamed vegetables, or a fruit side for balance.