3.5 cups frozen bite-sized potato nuggets (such as Tater Tots®)
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0.5 cup unsalted butter, melted
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3 cups grated Colby-Jack cheese, divided
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8 large eggs
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2 cups milk
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1 small onion, chopped
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1.5 tablespoons prepared yellow mustard
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salt and ground black pepper to taste
Instructions
Preheat the oven to 425 degrees F (220 degrees C). Spray a 9x12-inch baking dish with cooking spray.
Place bacon in a large skillet and cook over medium-high heat, turning occasionally, until evenly browned, about 10 minutes. Drain bacon slices on paper towels and let cool.
Heat the same skillet over medium-high heat and add sausage. Cook and stir until browned and crumbly, 5 to 7 minutes. Remove from heat. Crumble cooled bacon.
Place potato nuggets in the bottom of the prepared baking dish, distributed evenly. Drizzle evenly with melted butter. Sprinkle with 1 1/2 cups of Colby-Jack cheese.
Mix eggs, milk, onion, 1/2 of the bacon and sausage, mustard, salt, and pepper together in a bowl. Pour into the baking dish. Add remaining Colby-Jack cheese, bacon, and sausage.
Bake in the preheated oven until set and cheese is melted, about 1 hour. Let cool for 15 minutes before serving.