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Mexican quinoa bake in cast iron skillet

Cheesy Mexican Quinoa Casserole Bake

This one pan Mexican quinoa bake is loaded with veggies. With only 30 minutes, you can whip up a cheesy Mexican casserole the whole family will love. This recipe makes 10 servings, so it will feed a crowd or make you lots of leftovers! All you need is a cast iron skillet to make this quinoa vegetarian casserole. Add some chips and guacamole as a side dish for a perfect weeknight dinner!
5 from 1 vote
Prep Time 5 mins
Cook Time 25 mins
Total Time 30 mins
Course Main Course
Cuisine Mexican
Servings 10 servings
Calories 281 kcal



  • Place quinoa and 4 cups of water in a medium saucepan. Cook according to package instructions.
  • While quinoa is cooking, heat extra-virgin olive oil in a 12 inch cast iron skillet over medium-high heat. Add bell peppers and onions to the skillet and cook stirring occasionally until the onions become translucent, about 7 minutes. Reduce heat to low and add in garlic, black beans, and tomatoes with chilies. Cook for an additional two minutes, then remove from heat.
  • Mix the salsa and cooked quinoa together until combined. Pour the quinoa into the vegetables in the skillet and stir until the mixtures are well combined.
  • Top with shredded cheese. Place cast iron skillet under the broiler until cheese is golden and bubbly, about 4 minutes. Be sure not to walk away from the dish while it's in the broiler otherwise something may burn.
  • Garnish with avocado and green onions. Serve immediately.


Reheating Instructions:
Microwave: Place in a microwave safe bowl and heat on high (100 percent power) for 2 -3 minutes until warmed all the way through.
Oven: Place in an oven safe dish covered with foil at 375°F for 10 - 15 minutes until warmed all the way through.


Calories: 281kcalCarbohydrates: 27gProtein: 12gFat: 13gSaturated Fat: 6gPolyunsaturated Fat: 2gMonounsaturated Fat: 4gCholesterol: 30mgSodium: 424mgPotassium: 358mgFiber: 3gSugar: 4gVitamin A: 1246IUVitamin C: 33mgCalcium: 226mgIron: 2mg
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