Grilled Beef Gyros

• 1 medium onion, cut into chunks
• 2 garlic cloves
• 2 tablespoon sugar
• 1 tablespoon ground mustard
• 1/2 teaspoon ground ginger
• 1-1/2 teaspoons pepper
• 1/2 teaspoon cayenne pepper
• 1/2 cup reduced-sodium soy sauce
• 1/4 cup water
• 1 beef sirloin tip roast (2 to 3 pounds), cut into 1/4-inch-thick slices
• 1 medium cucumber, peeled, seeded and cut into chunks
• 4 garlic cloves
• 1/2 teaspoon salt
• 1/3 cup cider vinegar
• 1/3 cup olive oil
• 2 cups sour cream
• 8 to 10 pita breads, warmed and halved
• Thinly sliced onion
• Chopped tomato

1. In a blender, combine the onion, garlic, sugar, mustard, ginger, pepper and cayenne; cover and process until onion is finely chopped. Add soy sauce and water; process until blended.
2. Place the beef in a shallow dish. Add marinade and turn to coat; cover and refrigerate for 1-2 hours.
3. For sauce, in a blender; combine the cucumber, garlic and salt; cover and process until cucumber is chopped. Add vinegar and oil; process until blended. Transfer to a large bowl; stir in sour cream. Refrigerate until serving.
4. Drain and discard marinade. Grill beef, covered, over medium-hot heat until meat reaches desired doneness (for medium-rare, a thermometer should read 135u0b0; medium, 140u0b0; medium-well, 145u0b0). Place beef in pita halves. Top with cucumber sauce, sliced onion and chopped tomato. Refrigerate any remaining sauce.

onion, garlic, sugar, ground mustard, ground ginger, pepper, cayenne pepper, soy sauce, water, beef sirloin tip roast, cucumber, garlic, salt, cider vinegar, olive oil, sour cream, pita breads, onion, tomato

Taken from www.tasteofhome.com/recipes/grilled-beef-gyros/ (may not work)