Toss together oats, peanuts, coconut, and sesame seeds in a large bowl. Cook peanut butter, brown sugar, butter, corn syrup, and salt in a small saucepan over medium heat 3 minutes or until smooth. Stir peanut butter mixture into oat mixture until blended.
Spread mixture in a single layer on a lightly greased, aluminum foil-lined 17- x 12-inch jelly-roll pan.
Bake 20 minutes or until lightly golden, stirring after 10 minutes.
Transfer to wax paper, and cool completely (about 20 minutes).