When it comes to burger toppings and serving ideas, the options are endless. Some popular choices include lettuce, tomato, onions, pickles, cheese, bacon, and various sauces like ketchup, mustard, and mayonnaise. You can also get creative with toppings like avocado, caramelized onions, mushrooms, or even fried eggs. Serve your burgers on toasted buns and consider complementing them with side dishes like fries, coleslaw, or a refreshing salad.