While the tater tots bake, sauté the onion until translucent. Microwave spinach for 1 minute to thaw, wrap in a paper towel, and squeeze to remove liquid. Chop the sausage into bite sizde pieces.
Whisk the eggs, then add quiche fillings to egg mixture and stir to combine.
Remove tots from the oven and flatten them into a crust using the back of a fork. Reduce oven temp to 325F.