There are many ways to roast peppers. This simple method can be done with any broiler and with any pepper, be it red or green, sweet or spicy.
Have a gas flame or hot grill? You may want to use the direct flame method as outlined in How to Roast and Peel Chiles (the method for peppers and chiles is the same). Want all this information in a classic recipe format? See the recipe for Roasted Red Peppers (the same methods work for peppers and chiles of any color!).