2 ounces bacon, (about 2 slices)
1 teaspoon canola oil
1 stalk celery, diced
1 leek, white part only, halved lengthwise, rinsed and thinly sliced
1/2 teaspoon salt
1/2 teaspoon freshly ground pepper
4 cups reduced-sodium chicken broth
8 ounces Yukon Gold potatoes, diced
2 cups fresh corn kernels, (about 4 ears)
1 1/2 pounds tilapia fillets, cut into bite-size pieces
1 teaspoon finely chopped fresh thyme
1 cup half-and-half
2 teaspoons lemon juice
2 tablespoons chopped fresh chives, (optional)