White Bean Fajita Casserole

White Bean Fajita Casserole

  • Some prep work can be done ahead of time, making this savory casserole an easy dinner option.
  • It’s packed with fiber and antioxidants from the peppers, onions, garlic and beans. 
  • Instead of using cannellini beans, you can substitute pinto or black beans.

If you are incorporating one or more meatless meals into each week, our White Bean Fajita Casserole is one you need to try. This veggie-packed meal is layered with antioxidant-rich bell peppers, onions and garlic that get a slight char for an authentic fajita taste. Creamy cannellini beans provide satiating protein, while the corn tortillas give a nice textural contrast as they soak up the smoky, gently spicy sauce. We’ve topped it off with a satisfying, melty Cheddar-Jack cheese combo and cooled it down with freshness from the sour cream, bright cilantro and creamy avocado. Keep reading for our expert tips on cooking technique, ingredient substitutions and more. 

Tips from the EatingWell Test Kitchen

These are the key tips we learned while developing and testing this recipe in our Test Kitchen to make sure it works, tastes great and is good for you too! 

  • To achieve a deep, sweet flavor, allow the peppers and onions to char slightly before adding liquid.
  • Broilers can vary significantly, so check the casserole after 3 to 4 minutes to prevent scorching.
  • Cut the cream cheese into cubes to help it soften and melt quickly and evenly into the dish.
  • You can substitute pinto beans for the cannellini beans, and you can use flour tortillas instead of corn tortillas.

Nutrition Notes

  • Bell peppers, onions and garlic provide antioxidant nutrients to this dish. Bell peppers have vitamin C and carotenoids that help reduce inflammation. Onions and garlic amplify the anti-inflammatory nature of this dish, and all three veggies provide fiber to support gut health. 
  • Cannellini beans are a source of filling protein and fiber, two nutrients that work together to help prevent blood sugar spikes. Fiber is also essential for maintaining good gut health. These creamy beans also contain potassium and magnesium for heart health, and iron for optimal energy levels. 
  • Avocados are a source of healthy monounsaturated fats that may help lower harmful cholesterol levels in the body, reducing the risk of stroke and heart disease. Avocados also have both types of fiber, soluble and insoluble, to support a healthy digestive system.