How many calories in a sandwich with ham?

The number of calories in a sandwich with ham can vary depending on the type of ham, the amount of ham, the type of bread, and any additional ingredients. For example, a sandwich on white bread with 2 slices of deli ham and 1 tablespoon of mayonnaise contains approximately 300 calories. A sandwich on whole-wheat bread with 2 slices of smoked ham and 1 tablespoon of mustard contains approximately 350 calories. A sandwich on a croissant with 2 slices of prosciutto and 1 tablespoon of olive oil contains approximately 400 calories.