Preheat your oven to 400 degrees. Cube chicken breasts into bite-sized chunks and season with salt, pepper, Italian seasoning, red crushed chili pepper flakes, paprika, and onion powder. Marinate in a bowl while you prepare the asparagus and the sauce.
Trim the ends of the asparagus. Arrange on one side of the baking sheet, salt and pepper.
In a bowl, combine melted butter, olive oil, minced garlic, hot sauce, soy sauce and juice from 1/2 of a lemon.
Arrange chicken bites next to the asparagus in the sheet pan, then drizzle the chicken bites and asparagus with the lemon butter sauce.
Bake for 20-25 minutes! Remove from oven, garnish the chicken bites and asparagus with parsley, crushed chili pepper, and serve immediately!