Step-by-Step Instructions
1. Prep the Oven and Dish
Preheat your oven to 350°F (175°C). Lightly grease a -inch baking dish with non-stick spray or butter.
2. Brown the Beef
In a large skillet over medium heat, add the ground beef and chopped yellow onion. Cook for 6 to 8 minutes until the beef is fully browned and the onions are soft. Add the minced garlic during the last minute of cooking. Drain off any excess grease and season the beef with salt, pepper, and a pinch of garlic powder.
3. Mix the Creamy Filling
In a mixing bowl, whisk together the cream of mushroom soup, sour cream (or milk), and half of the shredded cheddar cheese until smooth.
4. Assemble the Bake
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Spread the cooked ground beef evenly along the bottom of your prepared baking dish.
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Layer the drained green beans directly over the beef layer.
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Pour the creamy soup mixture evenly over the top, smoothing it out with a spatula so it coats the green beans.
5. Bake to Bubbly Perfection
Cover the baking dish loosely with foil and bake for 20 minutes.
Remove the foil, sprinkle the remaining cheddar cheese across the top, and scatter the French fried onions over the cheese. Bake uncovered for an additional 8 to 10 minutes, or until the cheese is melted and the onions are golden and crispy.
6. Rest and Serve
Allow the casserole to rest for 5 minutes before serving to let the layers set. Serve hot alongside warm dinner rolls or a simple garden salad.
Recipe Variations & Pro-Tips
Fresh vs. Canned Beans: While canned green beans offer traditional simplicity, using blanched fresh green beans adds a lovely snap and vibrant color to the dish.
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Add a Potato Layer: For an even heartier meal, layer cooked diced potatoes or tater tots on top of the ground beef before adding the green beans.
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Cheesy Upgrade: Swap regular cheddar for sharp cheddar, Swiss, or a Colby-Jack blend for an extra depth of flavor
