Nonstick vegetable oil spray
1 1/2 pounds        plum tomatoes
1     large         onion
                    end, each half cut into thin wedges
2                   garlic cloves
1     tablespoon    extra-virgin olive oil
                    Salt
                    Freshly-ground black pepper
8     ounces        green beans
                    cut diagonally into 2" pieces
2     teaspoons     curry powder
2     teaspoons     minced peeled fresh ginger
4                   sea bass fillets, 1 1/2"-thick