A hearty, cheesy ground beef and tater tot casserole with a creamy mushroom and sour cream sauce, baked until bubbling and golden. The crispy tots on top give way to a rich, savory filling beneath, making this a comforting weeknight dinner the whole family will love.
Store leftovers in an airtight container in the refrigerator for up to 4 days. To freeze, assemble the casserole without baking, cover tightly with foil, and freeze for up to 3 months. Thaw overnight in the fridge, then bake at 375°F / 190°C for 40 to 45 minutes. To reheat individual portions, microwave on high for 1.5 to 2 minutes, or reheat in a 350°F / 177°C oven for 10 minutes to restore crispness. Avoid reheating in a toaster oven as tot bottoms may burn.
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