In a medium bowl, whisk together eggs, milk, salt and pepper. Set aside.
Add the sausage crumbles to a nonstick skillet over medium heat. Cook for 1-2 minutes, or until warmed through.
Add butter and eggs to the skilled and cook until scrambled.
Place tortillas onto a baking sheet. Add equal portion of egg and sausage mixture to tortillas. Top with cheese.
Roll/fold into burrito and place seam-side down onto baking sheet. Place in preheated oven for 5-10 minutes until burritos are warmed through and cheese is melted.