Oven Roasted Rainbow Shrimp Fajita

Shrimp Fajita Onions Peppers
Rainbow Shrimp Fajita

Move over Taco Tuesday – We celebrated National Fajita Day last night with this one pan, family style meal that is easy to assemble

Shrimp Fajita Avocado Tomato Yogurt on a tortilla
Oven Roasted Shrimp Fajita with Lime Avocado Tomato to Celebrate National Fajita Day – One Pan Meal

What are Fajitas?

Fajitas are popular Mexican fare that consist of sautéed onions and peppers, and typically a protein like shrimp, chicken, or steak. While they are often confused with tacos, fajita refers to the filling, which originally consisted of “carne,” or beef, but fast forward to today and it seems just about anything goes in the filling! You can even skip the animal protein and use tofu or tempeh to keep it vegan. In restaurants, fajitas are served with the filling separate from the tortilla, and often on a sizzling cast iron skillet, unlike tacos which come already assembled.

Shrimp Fajita with Condiments
Shrimp Fajita with Condiments

How to Cook Fajitas

Fajita filling is typically cooked on the stove top. In this recipe we are moving it to the oven to roast and caramelize our ingredients to add to the depth of flavor, plus it saves time and clean up on the stove. I like to line my pan with parchment paper. Tortillas are lightly toasted in a dry skillet. Just warm them through. If they are overtoasted, the tortillas will get hard as they cool, and will crack and break when you fold the tortilla over the filling.

Shrimp Fajita Condiments - Lime Wedge, Guacamole, Diced Tomato
Shrimp Fajita Condiments – Lime Wedge, Guacamole, Diced Tomato

Rainbow Shrimp Fajita

Course Appetizer, dinner, tapas
Cuisine anti inflammatory, Mexican, seafood, Shrimp
Keyword bell peppers, chilis, fajita, guacamole, Shrimp
Prep Time 10 minutes
Cook Time 20 minutes
Calories 300 kcal

Ingredients

  • 1 ½ pounds peeled and deveined wild caught shrimp raw
  • 1 large red onion peeled and thinly sliced
  • 4 cloves fresh garlic minced
  • 1 each red orange, and yellow bell pepper, seeded and thinly sliced
  • 2 tbsp good olive oil divided
  • 1 tsp ancho chili powder
  • 1 tsp chipotle chili powder
  • 1 tbsp ground cumin
  • ½ cup fresh oregano destemmed and chopped
  • ½ tsp fine ground sea salt
  • 8 small or 4 large tortilla
  • 1 lime cut into wedges

Instructions

  1. Preheat oven to 400 degrees F – use convection roast setting if you have a convection oven
  2. Mix dry spices – chili powders, cumin, and sea salt
  3. In a large baking dish, toss onions, garlic, peppers, and oregano with 1 tbsp olive oil, and half of spice mix
  4. Bake on middle upper oven rack until vegetables begin to wilt, about 10 minutes
    Shrimp Fajita Red Onion Bell peppers
  5. Toss remaining spice mix with shrimp, then layer shrimp on top of vegetables and return pan to oven

    Shrimp Fajita Onions Peppers
  6. Roast for 10 minutes, turning shrimp over with tongs halfway through
  7. Shrimp is cooked when it is pink and minimum internal temperature is 145 degrees F
  8. While fajita mixture is roasting, warm tortillas in a dry preheated nonstick pan or cast iron skillet, toasting each side, then set aside stacked to keep warm
  9. Serve family style with lime wedges, and if desired, guacamole, salsa, and a dollop of plain yogurt
    Shrimp Fajita with Condiments

Get Recipes in Your Inbox

Like this one? Subscribe to get fresh, healthy recipes from Tina — no spam, just good food.

I'm Tina Marinaccio, a NJ-based Registered Dietitian.

My mission is to empower individuals to nourish their bodies with balanced, flavorful meals that support health, wellness, and an active lifestyle.

Get Recipes in Your Inbox

Like this one? Subscribe to get fresh, healthy recipes from Tina — no spam, just good food.

Recent Posts

Categories

Tina Marinaccio, MS, RDN, CPT, is a Licensed Registered Dietitian Nutritionist and Certified Personal Trainer based in Denville, New Jersey. With more than 25 years of experience in nutrition counseling, personal training, cooking instruction, and public speaking, she helps individuals build sustainable, healthy lifestyles through practical, evidence-based nutrition.

Tina earned her Master’s Degree in Clinical Nutrition from New York University and has completed advanced training in functional medicine and nutrition. Throughout her career, she has served in leadership roles within hospitals, rehabilitation facilities, and the nutrition industry, and has been featured in leading media outlets including Men’s Health, Yahoo, Fox News, AARP, ParadeThe New York Post, MyFitnessPal, Today’s DietitianEat This, Not That!, GoodRx, and Healthline. She is passionate about helping people improve their health through realistic nutrition strategies that fit everyday life.

Download My Free Anti-Inflammatory Diet Cheat Sheet (with Recipes)

Science-backed tips to reduce inflammation and feel your best — starting today.