1. Preheat oven to 450°.
2. Combine first 4 ingredients. Add 1/4 teaspoon salt and 1/4 teaspoon pepper; toss well. Spoon mixture into bottom of a broiler pan coated with cooking spray. Bake at 450° for 10 minutes; stir once.
3. Combine remaining 1/4 teaspoon salt, remaining 1/4 teaspoon pepper, oil, and garlic; brush evenly over fish. Remove pan from oven. Place fish on broiler pan rack coated with cooking spray; place rack over fennel mixture.
4. Bake at 450° for 10 minutes or until desired degree of doneness.