The degree of spiciness of these stuffed mushrooms depends on the hotness of your chorizo sausage. Mine wasn't very spicy - I would consider it "mild." You can choose very spicy or you can opt for Italian or country sausage in place of the chorizo. The stuffed mushrooms will be just as delicious if you replace with a different type sausage. You could also choose to replace the bell pepper with a hot pepper of your choice, like jalapeno or hot chilis.