Greek Pita Burgers

Tonight was the first time I have ever grilled a burger and also the first time I used a George Foreman!  It was quite an experience.  Read more to find out about these burgers.

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So along my journey I obviously needed to learn the art of grilling.  Where better to start than burgers?  Now of course I couldn't make the run of the mill burger, I saw this recipe and knew immediately it was perfect. 
Greek Pita Burgers with Spinach, Feta and Tzatziki Sauce
Sauce
1/2medium cucumber, peeled, seeded and shredded
1container (8 oz) plain yogurt
4medium green onions, chopped (1/4 cup)
1clove garlic, finely chopped
1tablespoon olive oil
1teaspoon lemon juice
1/4teaspoon salt
Burgers
1lb lean (at least 80%) ground beef
1/2cup Green Giant® frozen chopped spinach, (thawed) squeezed to drain
1/3cup crumbled feta cheese
1/4cup finely chopped red onion
2cloves garlic, finely chopped
1/2teaspoon salt
1/4teaspoon pepper
8whole wheat hamburger buns, split
2medium tomatoes, sliced
4leaves romaine lettuce, torn in half

• Place shredded cucumber in clean dish towel; squeeze to remove any excess liquid. In small bowl, mix cucumber and remaining sauce ingredients. Cover; refrigerate until serving time.
• Heat gas or charcoal grill. In large bowl, mix all burger ingredients except buns, tomatoes and lettuce. Shape into 8 patties, 1/4 inch thick. Place patties on grill over medium heat. Cover grill; cook 5 to 8 minutes, turning once, until meat thermometer inserted in center of patties reads 160°F.
• Spoon 2 tablespoons sauce on bottom half of each bun. Top with burger, tomato and lettuce. Cover with top halves of buns.                                                                                                                               recipe from Betty Crocker

So I don't know about you but I thought this was amazing!  I did however forget the buns but bread was just fine.  Now this is a more "girlie" burger especially with the Tzatziki Sauce.  My boyfriend is my certified taste tester of all things I make and he was not thrilled with the sauce but, he did love the burger.  We did agree that a more Greek way to make this would be to replace the cucumbers with olives in the sauce.  I have not tried this yet and I do not know what the salty from the olive would do to the sauce.  All in all I am thrilled with my first experience making burgers!  Do you have any suggestions for a good sauce for a Greek Burger?  If so leave me a comment and let me know!