Tzatziki is really hard to spell. Forget about your spell check picking it up, because it doesn't know either. Anyway, remember that tzatziki sauce you made with the pork souvlaki? If you have extra you can use it as a marinade. The cucumber gives it a nice fresh taste.
Just add the leftover sauce to a couple salmon fillets and let marinate for 30 minutes. Cook in the oven at 450F for about 12 minutes, or until it flakes easily in the middle with a fork. To make it even easier, serve with the leftover rice and potatoes from the night before. Now that's a quick and easy weeknight meal.