Spread asparagus spears in a single layer on baking sheet. Drizzle with olive oil and balsamic vinegar; sprinkle with salt, pepper, garlic powder. Toss spears to coat. Make sure spears are in single layer again, sprinkle with sesame seeds, if desired.
Bake at 350 degrees for about 10 minutes until tender crisp, or until desired doneness.
NOTE: These can also be sautÃ©ed in skillet with same seasonings.