PREPARATION:
- Bring water, 1/2 teaspoon of salt, tomatoes and 2 tablespoons reserved tomato oil to boil in small saucepan. Remove from heat. Stir in potato flakes. Cover; let stand about 30 seconds. Remove cover; whip with fork or whisk until fluffy. Cover; keep warm.
- Spray large nonstick pan with cooking spray; heat over medium-high heat. Add 1 bag of spinach in batches. As spinach wilts, add second bag in batches, until spinach just wilts, about 5 minutes. Add remaining salt and 1/2 teaspoon pepper. Cover; remove from heat; keep warm.
- Place catfish fillets, flour and salt and pepper to taste in a plastic bag. Seal bag and shake to coat fillets with flour.
- Spray large nonstick skillet with cooking spray; heat over medium-high heat. Cook catfish fillets until browned on 1 side, about 5 to 6 minutes. Turn and cook until browned on other side, 5 to 6 minutes.
- To serve: Spoon mashed potatoes equally onto 4 plates in oval mounds. Divide steamed spinach equally and layer over potatoes. Top each stack with 1 catfish fillet.
