Preheat oven to 425°F. Lightly coat a 1-quart quiche dish or shallow baking dish with cooking spray; set aside. In a shallow baking pan combine corn and sweet pepper. Drizzle with olive oil; toss to coat. Roast, uncovered, about 20 minutes or until vegetables start to brown, stirring occasionally. Remove from oven and let cool.

Meanwhile, in a medium bowl stir together crabmeat, cheese, mayonnaise, sour cream, green onions, and black pepper. Stir in roasted vegetables. Transfer mixture to prepared dish. (To serve today, omit Step 3 and continue as directed in Step 4.)

Cover with plastic wrap; chill for up to 24 hours.

Preheat oven to 375°F. If chilled, remove plastic wrap. Bake about 20 minutes or until bubbly around edges. Serve with toasted broken tostada shells, baguette slices and/or crackers.