Hot Roast Beef Party Sandwiches

½ cup finely chopped walnuts 2 (9.25 oz) packages dinner or party rolls ⅔ cup peach preserves ½ cup mustard-mayonnaise blend ½ lb, thinly-sliced deli roast beef chopped ½ lb sliced Havarti cheese Salt and pepper to taste (optional)

Preheat oven to 325°. Heat walnuts in a small nonstick skillet over medium-low heat, stirring often, 5-6 minutes or until lightly toasted and fragrant. Remove rolls from packages, so not separate individual rolls. Cut rolls in half horizontally, creating 1 top and 1 bottom per package. Spread preserves on cut sides of top of roll; sprinkle with walnuts. Spread mustard-mayonnaise blend on cup sides of bottom of rolls; top with roast beef and cheese. Sprinkle with salt and pepper, if desired. Cover with top halves or rolls, preserves side down and wrap in aluminum foil. Bake at 325° for 30 minutes or until cheese is melted. Slice into individual sandwiches. Serve immediately. Can be made ahead to the step-wrap in foil and freeze up to 1 month. Thaw overnight in refrigerator and back as directed.