Cheddar Corn Chowder

Name: Cheddar Corn Chowder
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Cuisine: American
Ingredients: 1 medium onion, chopped; 1 cup diced sweet red pepper; 2 tablespoons butter; 1/4 cup all-purpose flour; 2 cups chicken or vegetable broth; 2 large potatoes, diced; 1 can (11 ounces) whole kernel corn, drained or 1-1/2 cups frozen corn; 1/2 teaspoon ground mustard; 1/2 teaspoon paprika; 1/4 teaspoon salt; 1/4 teaspoon crushed red pepper flakes; 1/8 teaspoon pepper; 2 cups whole milk; 1-1/2 cups shredded cheddar cheese; 4 green onions, thinly sliced