Lori's Greek Cod

Ingredients

• 2 tablespoons olive oil
• 1 cup onion (minced)
• 1 (28 ounce) can chopped tomatoes (drained well)
• 1 (10 ounce) package spinach (stemmed, blanched, chopped)
• 14 cup red wine vinegar
• 14 cup brown sugar
• 1 teaspoon dried oregano
• 1 teaspoon dried basil
• salt & fresh ground pepper (to taste)
• 2 lbs cod fish fillets
• olive oil (as needed)
• 2 tablespoons lemon juice
• mesclun (as needed)