In large bowl, mix 2 tablespoons of the melted butter, 1/2 teaspoon of the curry powder, 1/4 teaspoon of the salt and 1/4 teaspoon of the pepper. Add potatoes and bell pepper; toss to coat. Place in single layer in pan. Roast 16 to 18 minutes or until just tender when pierced with knife. Remove from oven; stir.