2 pounds lean beef stew meat  | 
                                                1/8 teaspoon salt  | 
                                                2 cups finely chopped onion (1 onion)  | 
                                                4 garlic cloves, minced  | 
                                                3/4 cup lower-sodium beef broth  | 
                                                1 tablespoon dark brown sugar  | 
                                                3 tablespoons red curry paste  | 
                                                2 tablespoons fish sauce  | 
                                                2 tablespoons fresh lime juice  | 
                                                1 (13.5-ounce) can light coconut milk  | 
                                                1 jalapeño pepper, minced  | 
                                                2 cups bagged baby spinach leaves  | 
                                                4 cups hot cooked jasmine rice  | 
                                                1/2 cup fresh basil leaves  |