That's cool. I'd also say an unripe tomato (green) could do this without imparting too much unwanted flavor. Green bell would be too strong, for example. I'll have to check out the peas.
Fresh squeezed lemon juice pairs very well with tomatillos and roasted ingredients vs. lime juice imo.
Also I'm not a huge garlic fan in sauces but in a sauce like this, it's imperative. You might want to play around with a 50/50 mix of fresh and roasted garlic. I like the qualities of both and...
The Got to Be NC website has some more copackers.
NC Co-Packers
Big Boss Baking Company
Blue Ridge Jams
Bobbees Bottling
C2 Bottling
Carolina CoPacking, LLC
D’Vine Foods
Golding Farms Foods
Kitcheneez
Star Food Products
Stormberg Foods
United Custom Foods
Transylvania Vocational Services, Inc...