Preheat oven to 400°; slice half of potatoes in ½ lengthwise, mix with 1 tbsp oil, salt/pep + fave spices; spread on sheet pan cut-side down; bake 15 min

Meanwhile, toss ½ of broccoli with 1 tbsp oil + salt/pep; after potatoes have baked 15 min, remove sheet pan, push potatoes to one side + add broccoli to empty side; roast veggies 10-12 min til tender + browned

Season fish with salt/pep + 2 tsp oil, then spread 2 tbsp tzatziki onto each fillet; place fish on lightly oiled second sheet pan + bake 10-12 min til fish is cooked through + flakes easily with a fork

Divide all to plates; garnish with chopped parsley + serve each with 2 tbsp tzatziki