Place bacon and sausage in a large skillet and cook over medium-high heat, turning occasionally, until evenly browned, about 10 minutes. Drain bacon slices and sausage on paper towels; crumble bacon and dice sausage.
Whisk eggs, 3-cheese blend, and jalapeno pepper together in a bowl; add sausage.
Heat 1 tablespoon oil in a skillet over medium heat; cook and stir egg mixture until cooked through and scrambled, 3 to 5 minutes.
Heat 1 tablespoon oil in a large skillet over medium-high heat; cook and stir hash brown potatoes until cooked through and browned, about 10 minutes.
Spoon scrambled eggs onto a plate and top with salsa and bacon. Serve potatoes alongside eggs.