Peanut Butter Banana English Muffin (1 serving) 1 English muffin 1/2 banana (sliced) 1 Tablespoon peanut butter mayonnaise (optional) Split the English muffin and toast. Spread one half of the English muffin with a light smear of mayonnaise if desired. Then spread with peanut butter and top with banana slices. Put other English muffin half on top and eat as a sandwich. The decision to include mayonnaise in this sandwich is a personal taste of this recipe's submitter. We at MrBreakfast.com don't necessarily endorse the combination of mayonnaise and peanut butter. What do you think? Good or gross? A breakfast sandwich (with one questionable ingredient) that both kids and adults love! Mr Breakfast would like to thank Lilybella for this recipe. Recipe number 397. Submitted 9/13/2002.