Confetti Cornbread

Ingredients

• 1 1/2 cups all-purpose flour
• 1/2 cup yellow cornmeal
• 2 tablespoons sugar
• 1 tablespoon baking powder
• 1 teaspoon salt
• 1/2 teaspoon dry mustard
• 1/2 cup milk
• 1/3 cup butter or 1/3 cup margarine, melted
• 3 eggs, beaten
• 1/4 cup finely chopped onion
• 1/4 cup finely chopped green pepper
• 1/4 cup finely chopped sweet red pepper (optional)
• 1 (12 ounce) can whole kernel corn, drained
• 1/2 cup grated cheddar cheese