Definitely! As it is, there really is not any spicy spice (heat-wise) in this recipe. You can always add some red pepper flakes or cayenne pepper for a milder heat. If you are looking for a medium heat level you could add in some Tabasco sauce or some Texas Pete sauce to kick it up a notch. If you want to really get spicy, toss in some chili peppers or jalapeno peppers.