1. Heat grill. Cook garlic in 1 tbs oil in a grill-safe pan over medium heat, 1 minute. Add tomatoes, olives and marjoram. Simmer until tomatoes have wilted, 5 minutes. Add fish, skin side down, and cook until almost done, about 6 minutes.
2. Top fish with breadcrumbs. Place pan under grill and cook until crumbs are golden and fish is cooked, 1 to 2 minutes.
3. Serve fish with sauce and drizzle with remaining oil.
NUTRITIONAL INFO PER SERVING
1,281 kJ (306 cal), 37g protein, 9g carbs, 2g fibre, 13g fat (1.5g sat fat), 232mg sodium