Preheat oven to 350 degrees. Spray baking dish with cooking spray or coat lightly with oil
Make the zucchini boats. Cut ends off the zucchini and cut in half lengthwise. Using a spoon, hollow out the center of the zucchini halves, leaving about 1/4-1/2 inch shell. Place flesh side up in glass baking dish.
Prepare a sauté pan with cooking spray and heat to medium.
Add in onion and ground meat. Cook until browned, 4-5 minutes.
Add diced tomatoes, olives, and oregano, stir to combine.
Stuff the zucchini boats with the meat mixture. Cover pan with foil and bake for 25 minutes. Remove from oven, uncover and add feta. Return to oven for 5 minutes.
Remove from oven, plate, and serve with side of Tzatziki sauce.
Notes
Recipe is 10 Green, Blue, or Purple WW points. Are figured using 90% lean ground beef and include both feta cheese and Tzatiki sauce. Save 2 points by removing cheese.