Shrimp Fajita Rice Casserole Recipe

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Shrimp fajita rice casserole combines succulent shrimp with colorful bell peppers and warm poblano peppers in a rice-based casserole with bright, vibrant flavors. This relatively simple dish allows the natural sweetness of shrimp to shine while the peppers add depth and visual appeal. The rice absorbs all the delicious flavors while creating a satisfying, complete meal in one dish.

Bowl of shrimp fajita rice casserole with vegetables garnished with avocado slices and cilantro

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.

Prep Time:
20 mins
Cook Time:
30 mins
Total Time:
50 mins
Servings:
6
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Ingredients

1/2x
1x
2x

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
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Nutrition Facts
Servings Per Recipe 6
Calories 328
% Daily Value *
Total Fat 16g21%
Saturated Fat 3g16%
Cholesterol 167mg56%
Sodium 982mg43%
Total Carbohydrate 27g10%
Dietary Fiber 7g27%
Total Sugars 5g
Protein 21g43%
Vitamin C 66mg73%
Calcium 139mg11%
Iron 2mg11%
Potassium 731mg16%

* 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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John Davis
John Davis

Hi, I’m John Davis!
Food has always been my favorite way to connect with people, and that’s why I started blogging about it. I love sharing quick, creative recipes that prove cooking at home can be just as exciting as eating out. Whether it’s a speedy weeknight dinner or a fun snack, I enjoy keeping things simple, flavorful, and approachable for everyone. When I’m not experimenting in the kitchen, I’m usually exploring new cuisines or hunting for fresh inspiration at local markets.

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