A friend of mine requested I post my home-made burger recipe, so here it is. Hope you guys like it.

Ingredients

• 1 cup assorted mushrooms, chopped
• 1/4 cup chopped green sweet pepper
• 1/4 cup chopped onion
• 1 tablespoon butter
• 1 egg, slightly beaten
• 3 tablespoons garlic-flavored fine dry bread crumbs
• 3 tablespoons grated Parmesan cheese
• 2 tablespoons ketchup
• 1/2 teaspoon celery salt
• 1/8 teaspoon ground coriander
• 1/8 teaspoon cayenne pepper
• 1 pound ground beef
• 1 medium onion, cut crosswise into slices
• 1 tablespoon olive oil
• 4 hamburger buns, split and toasted
• 1 tablespoon olive oil
• Sliced cheese (optional)
• Sliced tomatoes (optional)
• Lettuce (optional)

Directions

1. In a medium skillet cook mushrooms, green sweet peppers, and onion in hot butter until tender and let cool.
2. In a large bowl combine the egg, bread crumbs, Parmesan cheese, ketchup, celery salt, coriander, and cayenne. Mix well. Next add the mushroom mixture and ground beef; mix well. Shape into 3/4-inch-thick patties. Let it refrigerate for at least half an hour before grilling, to make sure the patties are firm and will hold it’s shape.
3. Brush onion slices with olive oil.
4. Grill patties and onion slices on the rack of an uncovered grill directly over medium coals for 14 to 18 minutes, turning once halfway through grilling. Serve burgers topped with onion slices on buns; add cheese, tomato slices, cucumbers, lettuce, pickles, etc, if desired.