Combine cereals in large microwavable bowl. In 2-cup microwavable measuring cup, microwave butter on High 30 to 40 seconds or until melted. Stir in curry powder, cumin, red pepper sauce and pepper flakes. Pour over cereal mixture and stir to distribute thoroughly.
Microwave on High 3 minutes, stirring after each minute. Stir in cashews and sesame seeds. Microwave on High an additional 2 minutes, stirring after one minute. Spread on paper towels to cool. Store in airtight container.