Serve these delicious sammies with slices of pears and apples, German potato salad and Cracovia Red Cabbage Salad
PreparationPreheat broiler. Steam broccolini until just tender, about 5 minutes. Transfer to paper towels and pat dry. Mix mustard and mayo together in small bowl.
Broil bread on baking sheet until lightly toasted, about 1 minute per side. Spread top side of each break slice with mayo/mustard combo.
Top each with onion slice, broccolini, and cheese. Broil until cheese melts and browns about 2 minutes.