Answer:
1 pound ground lean (7% fat) beef
1 large egg
0.5 cup minced onion
0.25 cup fine dried bread crumbs
1 tablespoon Worcestershire
1 or 2 cloves garlic, peeled and minced
About 1/2 teaspoon salt
About 1/4 teaspoon pepper
4 hamburger buns (4 in. wide), split
About 1/4 cup mayonnaise
About 1/4 cup ketchup
4 iceberg lettuce leaves, rinsed and crisped
1 firm-ripe tomato, cored and thinly sliced
4 thin slices red onion
