Try this homemade Mary Jo Reeves' Ham And Swiss Party Sandwiches recipe the whole family will love. Made with margarine, mustard, poppy seed and onion. …
This Mary Jo Reeves' Ham And Swiss Party Sandwiches relies on simple, everyday ingredients such as margarine, softened, prepared mustard, poppy seed and medium onion, finely chopped. It comes together quickly and makes 4 servings, at about 670 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026