| 1 tablespoon olive oil | |
| 1 package (12 ounces) fully cooked Italian chicken sausage links, cut into 1-inch pieces | |
| 1 large onion, chopped | |
| 3 garlic cloves, minced | |
| 1/4 teaspoon crushed red pepper flakes | |
| 1-1/2 pounds red potatoes (about 5 medium), thinly sliced | |
| 1 package (10 ounces) frozen corn | |
| 1/4 teaspoon pepper | |
| 1-1/4 cups vegetable broth | |
| 2 cups fresh baby spinach |