1. Preheat oven to 350F.
2. Place potato nuggets in lightly oiled medium casserole dish.
3. Drizzle onion, melted butter, salt and pepper over potatoes.
4. Top with Parmesan, cheddar cheese and croutons.
5. Lightly cover casserole with aluminum foil and bake at 350°F for 20 minutes.
6. Uncover and bake an additional 10 minutes until hot and cheese is melted
Tip: Good served with a scoop of sour cream, diced tomatoes and bacon.