Thai Dumpling Soup

Name: Thai Dumpling Soup
Cook time: 35 min
Total time: 35 min
Cuisine: Asian, Thai
Ingredients: 1 tablespoon vegetable oil; 3 stalks celery, sliced; 4 ounces shiitake mushrooms, sliced; 1 tablespoon curry powder; 4 cups low-sodium chicken broth; 1 cup coconut milk; 1 tablespoon fish sauce, plus more to taste; 4 ounces green beans, roughly chopped; 1 red bell pepper, chopped; 1 pound frozen Asian-style dumplings or pot stickers; Juice of 1 lime, plus lime wedges for serving; Kosher salt; Sliced scallions, for topping