Preheat the oven to 400°F (200°C). Grease a casserole dish so the clean-up crew can sleep at night.
Spread the green beans in an even layer on the bottom. They’re the green gossip of the dish—everybody knows they’re there.
In a bowl, whisk together the cream of mushroom soup, milk, garlic powder, onion powder, salt, and pepper until smooth.
Pour the soup mixture over the beans, then sprinkle in half the cheddar cheese. Give it a quick stir so the flavors mingle like old friends at a reunion.
Top with the frozen tater tots in a single layer. Don’t worry about perfect alignment—tater tots are forgiving and mischievous like that.
Sprinkle the remaining cheddar on top, and if you like a little color, a light dusting of paprika.
Bake for 25–30 minutes, then increase the heat to 450°F (230°C) for the last 5–7 minutes to crisp up the tots. Keep an eye on it so you don’t get a tot-tastrophe.
Remove from oven, let it rest for 5 minutes, then top with green onions or parsley if you’re feeling fancy.