Looking for suggestion for food to serve.

We're doing a family only party for my daughter's 3rd birthday. It'll be all adults (she's going to Disneyland the next day.). Looking for suggestions for foods for a brunch time casual get together. So far I have a meat and cheese board, a build a bagel bar (lox, spreads, veggies, jams...), fruit, desserts. I feel like I need a few more options (my family is big on having lots of food at gatherings.)

Must be:
-finger/hand foods preferred as we won't have enough space for everyone to sit and use two utensils
-must be super easy to put together as I'm 8 months pregnant.
-I have access to Costco and Trader Joe's so anything easy from those places would work great.

Thanks ladies!