Process the onion in a food processor for 10 to 15 seconds and turn into the center of a tea towel. Gather up the ends of the towel and squeeze until almost all of the juice is removed. Discard juice
Add onion, lamb or beef, garlic, marjoram, rosemary, salt, and pepper to a food processor. Blend 1 min until a fine paste forms, scraping sides as needed. Transfer to a pan and cook over medium-high heat until browned and no longer pink.
Slice or crumble and serve on one half of an English Muffin. Fold over and secure with a wooden pick
Top with tzatziki sauce (see below), chopped onion, tomatoes and feta cheese
For Tzatziki Sauce: place the yogurt in a tea towel, gather up the edges, suspend over a bowl, and drain for 2 hours in the refrigerator
Place the chopped cucumber in a tea towel and squeeze to remove the liquid. Discard liquid
In a medium mixing bowl, combine the drained yogurt, cucumber, salt, garlic, olive oil, vinegar, and mint
