R.J.
We used something similar in our nutrition class in college. I don't remember the title, but it was about $100 and had the nutrition info on every prepackaged food AS WELL as "insert recipe" just like you're asking for (needing fat content 90/10, 75/25, etc., whether ingredients were frozen, fresh, canned -and what was in the canning process-, which region certain fruits/veggies were grown, kosher v iodized v sea salt -and which ocean region the salt originated because there's a huge difference nutritionally, etc.). At the time, they had something like 144,000 entries available.
It gave you the bare bones USDA label (making from scratch, as well as the published labels doritos puts out), but ALSO gave all the info that labels don't (since labels are to nutrition what see spot run is to literature... aka bare bones). Of course, this was only a small part of what the software does (since it's med software, you're also inserting medical conditions of your patients -chemo, pregnancy, anorexia, diabetes- and the drugs they're taking -because drugs alter how you digest and absorb food-, ages, weights, heights, bone density, muscular mass, activity levels, region that the patient lives in, etc.
I would suspect you'd be able to find it on most college campus bookstores
Don't know
- if you would need to use a professional version
- if the USDA only has certain companies they license to do this & if they would qualify
- if the software would support thousands of pounds in the recipes (although it supports restaurant weights, don't know about manufacturing)