1. To make crunch: Preheat oven to 350°. Spray an 8- x 8-inch baking pan with cooking spray. In a large saucepan, heat brown sugar and butter, stirring, until smooth. Remove from heat and stir in oats, pecans, and pumpkin seeds. Spread in prepared pan. Bake 20-25 minutes, until golden. Cool in pan on wire rack. Crumble into pieces.
2. Spoon about one-half of crunch into 8 tall glasses and top with half of yogurt and half of fruit. Repeat layering with the remaining crunch, yogurt, and fruit.