Yes, a dog can eat burgers but without adding any spice, salt, onion, garlic or raw beef, etc, because these are the things which upset the belly of the pup and cause serious problems. We should avoid these things before making any type of burger.
Is cheeseburger suitable for dogs?
What are the side effects of cheeseburger for dogs?
How can we make a homemade cheeseburger for a dog?
A hamburger is suitable for dogs
Can my dog eat a hamburger?
How can we make a hamburger in a home for dogs?