I'm working on building out an online food ordering system for a cafe—my first dip into Drupal Commerce. The concepts are starting to make sense, yet while i'm pretty proficient with Drupal, i've got a long way to go to feel in any way competent with Commerce.

This post is simply to ask for some direction. Here's some goals:

Define all the menu items (mostly sandwiches and salads) as a combination of specific ingredients (breads, proteins, cheeses, veggies, condiments, etc.) and display them in a kind of "menu view".

I'd like user experience to work like this:

While on the "Menu" page, all item titles are click-able. When the user does so, s/he'll then be prompted with a set of options, allowing the user to

• keep the included ingredients of the selected items the same (default behavior)
• opt of of included ingredients
• add additional ingredients which aren't part of this specific menu item (for a fee, depending on the ingredient)
• choose bread type (if sandwich)
• choose any other conditional options based on the selected item
• add the item to the shopping cart when it's modified to the user's liking

Lastly, i'll need some kind of rule requiring the user to select a pick-up date/time when a new order is started.

Most of this idea comes from looking at the way Jimmy John's handles online ordering (via the orderTalk system). I'm certain most readers of this post aren't normally ordering Jimmy John's online, so here's a screenshot, simply to give you an idea of what i'm going for:

So yeah, i'm just looking for things like "You'll need these contrib modules..." (http://drupal.org/project/commerce_custom_product) maybe? Or "You'll need to define a product type for each menu category" or "You'll need to define a line item type for every single menu item..."

Any insight, small or big, is hugely appreciated.