Lemon-Blackberry Cheesecake - for being a layered cheesecake, this really wasn't too labor or time-intensive. Bottom is a blackberry/lemon blend and top is plain cheesecake. Good, tangy flavor, looked beautiful, and turned out great! Very summery.
This was the inspiration for my cake but I totally simplified it. Prepare a chocolate cake mix. Cool, poke, fill with runny chocolate pudding (add extra milk or just don't whip till thick) Frost with cool whip and we decorated with mini M&Ms.