Grilled Sheet Pan Burger Bar

Name: Grilled Sheet Pan Burger Bar
Ingredients: 1/2 cup mayonnaise; 2 tablespoons ketchup; 1 to 2 tablespoons sriracha; 4 green leaf lettuce leaves; 1 large tomato, sliced; Dill pickle spears, for serving; 2 pounds lean ground beef; Kosher salt and freshly ground black pepper; 4 strips bacon; 2 portobello mushrooms, stemmed and sliced; 2 sweet onions, sliced into 1/4-inch rounds; 2 poblano peppers, seeded and sliced into 1/4-inch rounds; 8 slices American cheese; 4 brioche hamburger rolls, split; Potato chips, for serving