Preheat oven to 350 degrees. Spray a 9x13 baking dish with nonstick spray.
Add the sausage to a skillet over medium heat and cook, stirring often to break up the sausage, until the sausage is cooked through. Drain the grease and spread the sausage in a single layer in the prepared pan.
Add the bacon to the skillet and cook until crisp, stirring often. Remove with a slotted spoon and sprinkle over the sausage.
Sprinkle the cheese over the top.
Add the eggs, milk, chiles, salt, and pepper to a mixing bowl and whisk to combine. Pour over the casserole.
Arrange the tater tots in a single layer over the egg mixture.
Bake for 45 minutes or until eggs are set.
Sprinkle with chives before serving.
Onions and bell peppers make a great addition! Finely dice them and cook with the sausage. Tater Tots work great, but we've also used Crispy Crowns here. They're basically the same thing, just shaped a bit differently.