I don’t know why I’ve never used Portobello mushrooms as buns before. I’ve used them as burgers, and I’ve used them on the bottom of a burger, but I’ve never used two of them. This is a little messy, but it definitely allows you to pick up the burger and eat it with your hands! You can top this however you like, but I kept it simple, drizzling a little balsamic vinegar on the bottom “bun” and then topping the burger with slices of avocado and this great 2 Olive Roasted Garlic Salsa by Desert Pepper Trading Co.
The burger was a grass-fed beef pattie, with onions built-in. I seasoned it with thyme, oregano, salt, pepper, and a little nutmeg. You can season your burger however you like. This is a highly customizable food!