Easy Pesto Ham and Cheese Sliders are a fun party or game day food made with caramelized onions and a delicious poppyseed topping!Use an electric knife to cut the rolls in half horizontally! Easy! Make ahead of time and pour the sauce on right before baking. I usually use a 9×13 plus a 8×8 pan.
Ingredients
1 ½lb.deli ham thinly sliced, or leftover holiday ham
Heat 2 Tbsp. butter in medium pan. Thinly slice the onion; sauté in the butter for about 5 minutes, or until clear and cooked.
Line the pan(s) with foil.
Leaving the (24) rolls attached, horizontally slice the top off; set aside. Place the bottom (attached 24 pieces) rolls in a 9×13 foil-lined baking pan. (You may need to squeeze them into the pan, or use a 9×13 + 8×8 pan:)
Spread the pesto evenly over the bottom bread.
Next layer on top of the pesto the ham, sautéed onions, and cheese slices.
Place the top section of the rolls that you already removed back on top of the sandwich.
In a medium sauce pan bring the ½ cup butter to a soft boil. Add mustard, worcestershire, poppy seeds, and brown sugar.
Pour sauce over the 9×13 sandwiches.
Cover with foil and bake at 350 for 20 minutes. Remove foil and bake another 10 minutes.