Brush a casserole dish with olive oil. Slice tomatoes evenly 1/8-inch thick and place 1 layer in a 1 1/2-quart casserole. Season with salt and pepper; sprinkle with half of herbs and all of feta. Do another layer of tomatoes and repeat process with herbs and salt. Top with bread crumbs and paprika, and cook in the oven for 40 minutes. Serve with crusty bread.