1 Tbs. vegetable oil, plus 1-1/2 to 2 cups for frying the tortillas
1/2 cup finely diced yellow onion
1-1/2 Tbs. chili powder
1 Tbs. tomato paste
1 quart homemade turkey or chicken broth, or low-salt canned chicken broth
6 cilantro sprigs
3 6-inch corn tortillas, cut into chips
1 cup shredded or medium-diced leftover roast turkey
3/4 cup medium-diced fresh tomato
1/2 cup cooked fresh corn kernels (or substitute thawed frozen corn)
1/2 cup canned black beans, rinsed and drained
1/2 to 1 ripe avocado, mediumdiced
1/4 cup crumbled queso fresco or feta cheese
3 Tbs. chopped fresh cilantro
2 Tbs. sour cream, or to taste (optional)
1/2 lime, cut into wedges
Heat the 1 Tbs. oil in a medium (3-quart) saucepan over medium heat. Add the onion and cook, stirring occasionally with a wooden spoon, until softened and just beginning to brown, 3 to 5 minutes. Add the chili powder and tomato paste and cook, stirring, for 15 to 30 seconds; don’t let the chili powder scorch. Pour in the broth and scrape the bottom of the pan with the spoon to loosen any cooked-on bits. Add the cilantro sprigs and bring to a boil over medium-high heat. Reduce the heat to medium low and simmer, uncovered, until the broth has reduced by about a third and is very flavorful, 20 to 30 minutes. Discard the cilantro sprigs and season to taste with salt.
While the broth reduces, bake the tortilla strips.
Divide the turkey, tomato, corn, beans, and tortilla strips between two large soup bowls. If necessary, reheat the broth until it’s piping hot. Pour the broth over the ingredients in the bowls. Garnish with the avocado, cheese, cilantro, dollops of sour cream (if using), and big squeezes of lime juice. Serve immediately.