Heat oven to 350°F.

Spray 13×9-inch (3-quart) glass baking dish or 3-quart casserole with cooking spray.

In large bowl, toss potatoes and 1 tablespoon of the taco seasoning mix until evenly coated.

Pat in baking dish.

Spray 10-inch skillet with cooking spray.

Add the sausage and onion; cook over medium-high heat 5 to 7 minutes, stirring occasionally, until sausage is no longer pink.

Drain.

In same large bowl, beat eggs, cheese, milk, salt, pepper and remaining taco seasoning mix with whisk until well blended.

Stir in sausage mixture and salsa.

Carefully pour over potatoes in baking dish.

Bake uncovered about 40 minutes or until eggs are set in center.

Let stand 10 minutes before serving.