Heat oven to 375°.
Spray large cookie sheets with cooking spray.
Cut potatoes into 1/4 inch slices; arrange in a single layer on cookie sheets.
Sprinkle with garlic salt; drizzle with oil.
Bake 10 minutes; turn.
Bake 15 to 20 minutes longer or until potatoes are golden brown.
Mix remaining ingredients together.
Serve chips with salsa.