I really think that you can make this cake work for any meal, you know.
Snack/Dessert - Obviously it is cake.
Breakfast - It's a large scale muffin. Let's be serious, the bakery at the local grocery makes 'muffins' that are chocolate chip with chocolate frosting, double chocolate, cinnamon chip with cream cheese frosting - if they can call those muffins, you can call the cake an oversized muffin.
Lunch - It's a chocolate salad.
Dinner - It has layers, so it is just a chocolate lasagna.
You win.