Didn't read the whole thread but out of the commends I *did* see, no one mentioned this: don't overwork the beef when you're mixing in toppings. The more you work it, the tougher the final product. Also, don't smash the hell out of the cooked burger (you're just draining the juices).
80/20, Fiesta seasoning or Nature's Seasoning, smash thin, cook on a ripping hot grill, serve on a toasted bun.
And for the love of all that is holy -- PLEASE don't smother the final product with your favorite sauce right before serving. No one wants you to ruin their burger with the fancy new sauce you found at Central Market last night. Let those you're serving ruin it themselves.
80/20, Fiesta seasoning or Nature's Seasoning, smash thin, cook on a ripping hot grill, serve on a toasted bun.
And for the love of all that is holy -- PLEASE don't smother the final product with your favorite sauce right before serving. No one wants you to ruin their burger with the fancy new sauce you found at Central Market last night. Let those you're serving ruin it themselves.