Preheat the oven to 350 degrees.

In a microwave safe bowl, add the vegetable oil, garlic powder and pepper. Cook until onions are translucent about 8 minutes. Stirring occasionally about every 1-2 minutes of cook time. Stir in the diced ham.

Completely line an 11 x 7 casserole dish with tater tots.

Pour the ham and onion mixture over the top of the tater tots.

In a bowl, beat together the eggs, sour cream, heavy cream, parsley until blended. Stir in the cheese.

Pour the egg mixture over the top of the tater tots.

Bake uncovered for 35-40 minutes or until the top is golden brown.

Serve.