Fancy Fish Italiano

Heat olive oil in a skillet over medium heat; cook and stir onion in the hot oil until almost tender about 5 minutes. Add garlic and 1/2 teaspoon Italian seasoning to onion; cook and stir until garlic is fragrant 2 to 3 minutes.

Stir zucchini yellow squash olives and capers into onion mixture; top with cod fillets. Sprinkle tomatoes remaining 1 teaspoon Italian seasoning salt and pepper onto cod fillets. Reduce heat cover skillet and cook until fish flakes easily with a fork and zucchini is tender about 10 minutes. Sprinkle mozzarella cheese over fish; cover skillet until cheese melts about 2 minutes.