1. Preheat the oven to 350 degrees.
2. In a bowl, mix together the cooked greens, egg, wheat germ, nutmeg, salt, and cheese.
3. Spread over the fillets and roll up as for a jelly roll. Secure with toothpicks and set, seam side down, in a buttered baking dish. Top each fillet with a slice of tomato. Brush with oil and bake for 20 minutes, or until the fish flakes easily.