For a richer flavor, use whole milk or add a splash of heavy cream at the end of cooking. Feel free to experiment with different types of soup, such as cream of celery or cream of chicken. Add frozen peas, corn, or other vegetables for extra nutrients and color. Use different cheeses, such as Gruyere, Monterey Jack, or Parmesan, to customize the flavor profile. Stir in fresh herbs, such as parsley, thyme, or chives, for added freshness. Adjust the cooking time based on your slow cooker model; some may cook faster than others.
Easy Slow Cooker Tuna Casserole
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PREP TIME10 mins
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COOK TIME5 hrs
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TOTAL TIME5 hrs 10 mins
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SERVING4 People
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VIEWS9
A comforting classic reimagined for the modern kitchen! This slow cooker tuna casserole is a simple yet satisfying dish that allows the pasta to cook directly in the sauce, creating a creamy, flavorful meal with minimal effort. Perfect for busy weeknights and adaptable to your favorite ingredients.
Ingridients
Adjust Servings
Nutrition
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Carbohydrate54 g
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Cholesterol49 mg
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Fiber2 g
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Protein28 g
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Saturated Fat9 g
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Sodium727 mg
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Sugar9 g
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Fat17 g
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Unsaturated Fat0 g
Follow The Directions
01
Step
1 mins
Lightly coat the inside of a slow cooker with nonstick cooking spray. (Prep time: 1 minute)
02
Step
2 mins
In the slow cooker, whisk together the milk, condensed cream of mushroom soup, and minced garlic until smooth. (Prep time: 2 minutes)
03
Step
3 mins
Stir in the drained tuna, Cheddar cheese, and chopped mushrooms until well combined. (Prep time: 3 minutes)
04
Step
2 mins
Add the uncooked macaroni pasta to the mixture, season with salt and pepper to taste, and stir thoroughly to ensure the pasta is submerged in the liquid. (Prep time: 2 minutes)
05
Step
6 hrs
Cover the slow cooker and cook on Low for 5 to 6 hours, or until the pasta is very tender and the sauce has thickened. (Cook time: 5-6 hours)
06
Step
1 mins
Before serving, give the casserole a good stir. If desired, sprinkle additional shredded Cheddar cheese over the top and let it melt for the last few minutes of cooking, or broil briefly after removing from the slow cooker. (Prep time: 1 minute)
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RECIPE REVIEWS
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Angelica Waters
Jun 26, 2025I added some frozen peas and corn, and it turned out great!
Vincent Hansen
Jun 26, 2025This was so easy to throw together on a busy weeknight! My family loved it.
Conner Vandervort
Jun 24, 2025I used Gruyere cheese, and it gave the casserole a wonderful nutty flavor.
Adrienne Jakubowski
Jun 21, 2025The recipe is very simple and delicious. I used whole wheat pasta. Excellent result!
Vernie Armstrong
Jun 18, 2025My slow cooker runs hot, so 5 hours was perfect for me. Check yours early!
Colin Ruecker
Jun 17, 2025This is now a staple in our house!
Mylene Marks
Jun 15, 2025The pasta was a little too soft for my liking, so I might reduce the cooking time next time.