3 grilled top portabellas tomatoes Recipes

baby portabella mushrooms, fresh, boneless beef top sirloin steak , trimmed of fat and cut into 3/4 inch cubes (about 3/4 inch thick), white pearl onion (from frozen, but thawed ), balsamic vinaigrette, tomatoes, halved, balsamic vinaigrette, fresh parsley, chopped

lemon juice, olive oil, dried oregano, pepper, garlic, minced or pressed, boneless top sirloin steak trimmed fat (about 1 inch thick ), halved red and yellow cherry tomato, green onions, thinly sliced, butter or 2 tbsp margarine, portabella mushrooms or 6 oz cremini mushrooms, sliced, salt