01 -
Preheat oven to 175°C. Grease a 23x33-centimetre baking dish with butter or nonstick spray.
02 -
Arrange frozen tater tots evenly in a single layer across the base of the prepared baking dish.
03 -
Whisk together eggs, whole milk, salt, black pepper, and dry mustard powder if using in a large mixing bowl until fully combined.
04 -
Sprinkle cooked, crumbled bacon evenly over the tater tots, then top with shredded cheddar and Monterey Jack or pepper jack cheese.
05 -
Slowly pour the whisked egg mixture evenly over the assembled layers, ensuring it seeps between tater tots and cheese.
06 -
Optionally, scatter chopped green onions on top. Bake uncovered for 40–45 minutes until eggs are fully set and surface is golden brown.
07 -
Remove from the oven and let stand for 5–10 minutes to allow for clean slicing before serving.