Place the chopped vegetables and lemon slices in the bottom of a 9 x 13″ baking dish and mix with 1 tablespoon olive oil, 1/4 teaspoon salt, and fresh ground black pepper. Crumble the feta cheese into rough chunks and add it to the pan, tossing gently to combine.
Pat the tilapia dry. Rub it with 1 tablespoon olive oil and 1/2 teaspoon kosher salt, split between the filets. Place it on top of the vegetables and feta in the pan. Sprinkle both fillets with the Italian seasoning and a few grinds fresh ground black pepper, then add the red pepper flakes and smoked paprika. Sprinkle the capers over the top.
Place the pan in the oven and bake for 20 to 25 minutes (depending on the thickness of the fish), until the fish is flaky and the internal temperature is 140 degrees Fahrenheit when measured with a food thermometer. Garnish with chopped parsley and remove the lemon slices when serving (or eat them if you like!).
Notes
Fish substitutions:Halibut, cod, trout, or other white fish work well in this recipe. Make sure to adjust the bake time for the thickness of the fish.
Garlic butter variation: For a richer flavor, make a garlic butter mixture by combining 2 tablespoons melted butter with 2 minced garlic cloves and drizzle over the fish before baking.
For crispy topping: Mix breadcrumbs with parmesan cheese and sprinkle on top during the last 10 minutes of baking.