I'm designing a UI for an app that allows users to order food from a restaurant. The restaurant offers two types of menu items:

1. Simple items that can be simply added to the cart.
2. Complex items like combos, which require confirmation of choices (e.g. which drink, which side, etc.) before they can be added to the cart.

My question is, do I need to differentiate between these two types of menu items when the user is presented with the affordance to select items from a list of menu items which can potentially contain both types?