Add the olive oil to a 13x9 baking dish and toss in the potatoes, peppers and onions. Season with salt and pepper and mix to distribute the oil and seasonings.
Bake for 25 minutes, until potatoes are tender. Remove from oven and stir.
Scatter garlic over the roasted vegetables. Season fish with salt and pepper and place on top of vegetables, folding any thin ends under thicker parts. Pour tomatoes over the top, sprinkle with the olives, parsley, and feta and then drizzle with lemon juice.
Pour tomatoes over the top, sprinkle with the olives, parsley, and feta and then drizzle with lemon juice.
Bake for about 10-15 minutes more or until the fish flakes with a fork at the thickest part.*
Serve with a simple green salad and hearty bread.
Notes
*Depending on the thickness of your filets, they could take up to 20 minutes of baking to flake with a fork. Start checking at 10 minutes and then every 4-5 minutes until thickest parts flake.Variations:
Omit the potatoes, and cook for only 15 minutes in the first step.
Substitute potatoes with chopped turnips, parsnips, or rutabagas and cook for the full time in the first step.
Add shelled, raw shrimp during the last 5 minutes of baking, until it turns opaque.
Substitute goat cheese or parmesan for the feta cheese.