Preheat the oven to 400 degrees. Grease an 8x8 pyrex dish.
Toss the cooked tater tots with a pinch of salt & pepper for seasoning. Spread them out in a single uniform layer out on the bottom of the dish and lightly press them with the back of a spatula.
Mix the heavy cream into the beaten eggs. Season well with Salt & pepper. Mix in half of the shredded cheese, the sausage & onions and pour mixture over the tater tots.
Top with the remaining cheese and parsley. Bake for approximately 30 minutes or until cooked through.