3 sirloin burgers with mushrooms swiss and balsamic mayo Recipes

extra virgin olive oil, chopped yellow onions, ground sirloin, worcestershire sauce, montreal brand steak seasoning, crusty rolls, split, baby portabella mushrooms, thinly sliced, coarse salt, fresh ground black pepper, swiss cheese, balsamic vinegar, mayonnaise, leaves romaine lettuce

chopped onion, lean ground sirloin, worcestershire sauce , eyeball the amount, steak seasoning or coarse salt and pepper, preferred brand mccormick montreal, extra virgin olive oil, for drizzling plus 1 tbsp, 1 turn of the pan in a slow stream, crusty rolls, split, portabella mushrooms, thinly sliced, coarse salt and pepper, swiss cheese, aged balsamic vinegar , eyeball the amount, mayonnaise or 1/2 cup low-fat, coarse black pepper, baby spinach, vine ripe tomatoes, sliced, scallions, chopped, romaine leaves (optional)