Shrimp Fajita Rice Casserole

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This shrimp fajita rice bake is relatively simple but the flavors really shine. Bright bell peppers, warm poblano peppers, and fire-roasted tomatoes bake with cooked rice and shrimp, and every serving is topped with avocado, sour cream, and cilantro.

By
Juliana Hale
Juliana Hale
Juliana Hale
Juliana Hale is a culinary specialist with over 20 years of experience in recipe testing and development. She works closely with Allrecipes, Better Homes & Gardens, Forks Over Knives, Midwest Living, and Traditional Home both in the test kitchens and with her stories.
Allrecipes' editorial guidelines
Published on February 17, 2025
Tested by
Sarah Brekke
Sarah Brekke
Tested by Sarah Brekke
Sarah Brekke is a culinary professional with over 10 years of experience food media. With a background in both culinary and food sciences, she uses her skills to develop, test, and modify recipes to make them as tasty and practical as possible.
Meet the Allrecipes Test Kitchen
Bowl of shrimp fajita rice casserole with vegetables garnished with avocado slices and cilantro
Prep Time:
20 mins
Cook Time:
30 mins
Total Time:
50 mins
Servings:
6
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Ingredients

Original recipe (1X) yields 6 servings

  • cooking spray

  • 1 tablespoon vegetable oil

  • 1 red bell pepper, cut into thin strips

  • 1 yellow bell pepper, cut into thin strips

  • 1 poblano pepper, seeded and cut into thin strips

  • 1 small onion, sliced

  • 3 cloves garlic, thinly sliced

  • 1/2 teaspoon salt

  • 1/2 teaspoon freshly ground black pepper

  • 1/2 teaspoon ground cumin

  • 1/2 teaspoon dried oregano

  • 1 pound frozen peeled cooked large shrimp, tails removed, thawed (31 to 35 per pound) 

  • 1 (14.5 ounce) cans fire roasted diced tomatoes

  • 1 1/2 cups cooked long grain white rice

  • sliced avocado

  • sour cream, as needed

  • chopped fresh cilantro

  • lime wedges

Directions

  1. Gather all ingredients.

    Ingredients for shrimp fajita casserole, including shrimp, peppers, and rice

    Jason Donnelly / Food Styling: Holly Dreesman / Prop Styling: Natalie Ghazali

  2. Preheat the oven to 400 degrees F (200 degrees C). Coat a 2-quart baking dish with nonstick cooking spray.

  3. Heat oil in a 12-inch skillet over medium-high heat. Add peppers and onion. Cook and stir until softened, 6 minutes. 

    Stir-frying sliced bell peppers and onions in a pan

    Jason Donnelly / Food Styling: Holly Dreesman / Prop Styling: Natalie Ghazali

  4. Stir in garlic, salt, pepper, cumin, and oregano. Cook and stir until fragrant, 1 minute.

    Seasoned peppers and onions being cooked in a skillet

    Jason Donnelly / Food Styling: Holly Dreesman / Prop Styling: Natalie Ghazali

  5. Stir together pepper mixture, shrimp, undrained tomatoes, and rice in a large bowl. Transfer to prepared baking dish. Cover tightly with foil.

    Mixing shrimp, rice, and vegetables in a pink bowl

    Jason Donnelly / Food Styling: Holly Dreesman / Prop Styling: Natalie Ghazali

  6. Bake in the preheated oven until heated through, about 20 minutes.

    Shrimp fajita rice casserole in a baking dish on a cooling rack

    Jason Donnelly / Food Styling: Holly Dreesman / Prop Styling: Natalie Ghazali

  7. Top servings with avocado, sour cream, and cilantro. Serve with lime wedges.

    Casserole served in a bowl with avocado and lime on the side

    Jason Donnelly / Food Styling: Holly Dreesman / Prop Styling: Natalie Ghazali

    From the Editor

    Here's everything you need to know about how to cook rice.

Nutrition Facts (per serving)

328 Calories
16g Fat
27g Carbs
21g Protein
Nutrition Facts
Servings Per Recipe 6
Calories 328
% Daily Value *
Total Fat 16g 21%
Saturated Fat 3g 16%
Cholesterol 167mg 56%
Sodium 982mg 43%
Total Carbohydrate 27g 10%
Dietary Fiber 7g 27%
Total Sugars 5g
Protein 21g 43%
Vitamin C 66mg 73%
Calcium 139mg 11%
Iron 2mg 11%
Potassium 731mg 16%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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