You sure can! If you like your dip a little on the spicier side you can add 4 to 8 ounces of canned fire roasted diced green chilies or jalapenos. For a mild spice go with the green chilies and for a hotter spice go for the jalapenos. You can use fresh jalapenos but they won't really be cooked through in the time it takes for the cheese to melt in the dip. That is why I prefer using the canned variety.