Prep Work: Mix panko through garlic cloves in a ziplock bag. Chop red pepper, zucchini, and brussel sprouts and store together. Make the dipping sauce if using instead of purchased tartar sauce; see below.
Preheat broiler on low setting. Grease broiler pan and a rimmed baking sheet or pan with olive oil. (Start some rice if you want to add it to this entree.)
Beat egg in a shallow dish with a fork until blended. Combine panko and next 3 ingredients in a seperate dish. Salt and pepper fillets. Dredge fillets through egg and then panko mixtures. Place on greased broiler pan.
Drizzle olive oil over vegetables in a bowl and toss until lightly covered all over. Sprinkle lightly with salt, pepper and oregano. Spread vegetables on prepared baking sheet.
Place both trays under broiler for 4 minutes. Then turn over fish and stir vegetables; broil 4 minutes more. Check fish and remove when it flakes easily with a fork.
Put vegetables on top rack with low broil, stirring every so often until vegetables are lightly browned and soft, approx. 25 min. (Move rack down one level if it is too close to the broiler.) Remove from oven, drizzle balsamic vinegar over top, stir, and return to oven middle rack for 2-3 min. Add basil and parmesan. Stir to combine on tray. HOME MADE DIPPING SAUCE: Combine 1/3 c. mayonnaise, 1 Tbsp. pickle relish and 1-2 Tbsp. lemon juice in a small bowl. MEAL EXTENDER: Use leftover fish to make tacos. Shred some cabbage and sprinkle with apple cider vinegar and light salt. Cut an avocado. Warm corn tortillas in a little oil in skillet and fold in half. Load up taco shells and top with salsa, tartar sauce, or any leftover dipping sauce from above recipe. "Vegetables in particular will cost you little in the way of calories while offering huge health benefits." http://www.oprah.com/health/Four-Weeks-to-Healthy-Eating