Preheat the oven to 450° F. Line a baking sheet with parchment paper or rub with oil.On the sheet pan, mix the chicken, garlic powder, pepper, and chile flakes. Add the flour and toss again. Add 2 tablespoons olive oil, tossing to coat. Arrange the chicken to one side of the baking sheet. Add the broccoli/asparagus to the other side. Toss with olive oil, salt, and pepper. Bake for 10-15 minutes until the chicken is cooked through.Meanwhile, make the sauce. In a bowl or glass jar, combine all ingredients.Remove the vegetables from the sheet pan. Then pour the honey garlic sauce over the chicken and toss the chicken up in the sauce. Bake for another 5 minutes, until the sauce is baked onto the chicken.Serve the chicken, vegetables, and honey garlic sauce with green onions and toasted sesame seeds. I love this over rice, but it's also great as an appetizer too!