Melon Tostadas

308 calories; 12 g total fat; 1 g saturated fat; 1 g polyunsaturated fat; 7 g monounsaturated fat; 0 mg cholesterol; 487 mg sodium. 399 mg potassium; 43 g carbohydrates; 11 g fiber; 10 g sugar; 9 g protein; 0 g trans fatty acid; 1707 IU vitamin a; 72 mg vitamin c; 0 mg thiamin; 0 mg riboflavin; 1 mg niacin equivalents; 0 mg vitamin b6; 63 mcg folate; 0 mcg vitamin b12; 92 mg calcium; 2 mg iron;