Easy Fish Curry With Coconut Milk

Name: Easy Fish Curry With Coconut Milk
Ingredients: 3 Tbsp. virgin coconut oil or vegetable oil; 3 Tbsp. red curry paste; Juice of 1 lime; 1 (13.5-oz.) can unsweetened coconut milk; 1 Tbsp. plus 1 tsp. sugar; 1½ tsp. Diamond Crystal or 1 tsp. Morton kosher salt; 1 medium zucchini, halved lengthwise, cut crosswise into half-moons; 1 medium red bell pepper, halved, ribs and seeds removed, cut into 2 pieces; 12 oz. cherry tomatoes, halved; 1½ lb. skinless white fish fillets (such as cod), cut into 1 pieces; Basil leaves, cooked rice, and lime wedges (for serving)