For a milder flavor, remove the seeds and membranes from the jalapeno and serrano peppers before chopping. Adjust the amount of hot sauce and garlic powder to suit your personal taste. If Hatch chiles aren't available, substitute with another mild green chile variety, such as Anaheim peppers. Roasting the chiles beforehand will add a delicious smoky note. Serve with your favorite tortilla chips, vegetable sticks, or as a topping for grilled meats and tacos.