4 filled onion burgers Recipes

lean ground beef chuck, black or green olive tapenade (sometimes labeled olive paste ), salt, black pepper, grilled or toasted hamburger buns or kaiser rolls, accompaniments: mayonnaise ; coarse-grain mustard; thinly sliced red onion; thinly sliced sweet gherkin pickles; about 2 cups baby romaine lettuce

onion, worcestershire sauce, black pepper, salt, monterey jack cheese (or what ever cheese you like)

ground chuck or sirloin, ground lamb, ground pork, salt and ground black pepper, cheddar, canola oil, flour, kosher salt, chili powder, baking powder, smoked paprika, black pepper, sweet pickle chips, buttermilk, sesame seed buns, halved and steamed, mayonnaise, filled with ketchup, filled with mustard, onion, sliced in rings, tomato, sliced, bibb lettuce leaves, dill pickles