Quinoa Casserole - A better choice!

Ingredients

• 1 red onion
• 2 garlic cloves
• Corn cut off the cob
• 1 cup dry quinoa
• 1 and 1/4 cup vegetable broth
• 1 can diced tomatoes
• Half a jar of enchilada sauce
• 1 can black beans drained and rinsed
• 1 teaspoon chili powder
• 1/2 teaspoon cumin
• 1/2 teaspoon salt
• 1 cup shredded cheese
• optional toppings: coriander, jalapeno, lime