Now, I've never been to Caputo's, so I'm guessing these options are comparable, esp. if you're looking predominately for produce - they're close by and worth checking out, at any rate:
Marketplace On Oakton
4817 Oakton St, Skokie, IL
(847) 677-1094
Patel Bros
2542 W Devon Ave, Chicago, IL
(773) 764-1857
Lincolnwood Produce & Grocery
7175 N Lincoln Ave, Lincolnwood, IL
(847) 329-0600
Jerry's Fruit & Garden Center Inc
7901 N Milwaukee Ave, Niles, IL
(847) 967-1440
Happy Foods Inc
4616 Oakton St, Skokie, IL
(847) 679-1661
(IMHO, H-Mart has excellent produce as well, and good meats and is well worth a visit. Packaged foods are where they are skewed more Asian)