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Sweet Potato Tuna Casserole Recipe

Sweet Potato Tuna Casserole Recipe


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4.8 from 19 reviews

  • Total Time: 30 minutes
  • Yield: 4 1x

Description

Sweet Potato Tuna Casserole brings comfort right to your dinner table with minimal fuss and maximum flavor. Creamy, cheesy goodness meets protein-packed tuna and hearty sweet potatoes, creating a delicious meal that satisfies hunger and warms your heart.


Ingredients

Scale

Main Ingredients:

  • 1 pound sweet potatoes
  • 1 (5 ounces / 142 grams) can tuna

Supporting Ingredients:

  • ½ cup mayonnaise
  • 2 tablespoons lemon juice
  • ¼ cup chopped onion
  • ¼ cup chopped celery
  • ¼ cup sweet pickle relish

Seasoning:

  • Salt
  • Pepper

Instructions

  1. Peel and cube 1 pound of sweet potatoes into bite-sized chunks for even cooking.
  2. Boil the sweet potato cubes in salted water for 12-15 minutes until fork-tender and soft enough to mash easily.
  3. Drain the sweet potatoes and transfer them to a large mixing bowl. Mash thoroughly with a potato masher until smooth and creamy.
  4. Open and drain a 5-ounce can of tuna, ensuring all excess liquid is removed.
  5. Add the tuna to the mashed sweet potatoes along with ½ cup mayonnaise, creating a creamy base.
  6. Finely chop ¼ cup each of celery and onion, ensuring uniform small pieces for consistent flavor distribution.
  7. Mix in the chopped celery, onion, ¼ cup sweet pickle relish, and 2 tablespoons lemon juice with the tuna and sweet potato mixture.
  8. Gently fold all ingredients together until completely incorporated and evenly distributed.
  9. Season with salt and pepper to taste, adjusting seasoning gradually and tasting as you go.
  10. Serve immediately at room temperature or refrigerate for 30 minutes to allow flavors to meld together before enjoying.

Notes

  • Roast sweet potatoes instead of boiling for deeper, richer flavor that enhances the entire casserole.
  • Drain tuna thoroughly to prevent excess liquid from making the dish watery.
  • Mix ingredients gently to keep the texture light and prevent mashing tuna into small, unappetizing pieces.
  • For a lower-fat version, swap mayonnaise with Greek yogurt and add fresh herbs like dill or chives for extra brightness.
  • Prep Time: 10 minutes
  • Cook Time: 20 minutes
  • Category: Tuna
  • Method: Boiling
  • Cuisine: American

Nutrition

  • Serving Size: 4
  • Calories: 310 kcal
  • Sugar: 6 g
  • Sodium: 580 mg
  • Fat: 22 g
  • Saturated Fat: 3.5 g
  • Unsaturated Fat: 18 g
  • Trans Fat: 0 g
  • Carbohydrates: 20 g
  • Fiber: 3.5 g
  • Protein: 17 g
  • Cholesterol: 30 mg