Charleston Shrimp and Grits

olive oil

Canadian bacon slices, chopped

medium onion, finely chopped

medium green bell pepper, finely chopped

garlic, finely chopped

dry white wine

cornstarch

low-sodium chicken broth

fat-free half-and-half (or use low-fat)

large shrimp, peeled and deveined

quick-cooking grits

Chopped scallions (dark green tops only), for serving