First we must gather the  Burger Build Components,  some of which we can make ourselves. The recipes make 12 servings, but you can adjust the numbers for your own party needs.  · Portobello Mushrooms Caps-3-4 inch diameter by 1-2 inch high  · English Muffins  · Plu gras butter – softened at room temperature  · Baby Arugula Lettuce  · Havarti Cheese Slices  · Pickled Red Onions  · Avocado Herb Mash  You will want to make the Pickled Red Onions first, to give them time to rest and cool before they are called for their close-ups.
A close-up image of a sandwich with a toasted bun, a meat patty, and various toppings including greens, onions, and a spread.
A close-up image of a sandwich with a toasted bun, a meat patty, and various toppings including greens, onions, and a spread.