Toast almonds and sesame seeds at 350°F. Almonds: 10–15 min. Seeds: 10 min. Cool completely.
Crush ramen noodles in a bag. Set seasoning aside.
Mix coleslaw, onions, ramen, almonds, and seeds in large bowl.
Whisk dressing: oil, vinegar, sugar, salt, pepper, seasoning packets.
Toss dressing with slaw. Chill 30 minutes before serving.
