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When I lived in the Frozen Tundra, I would make myself a big pan of this and freeze it in individual portions for my lunch … everyday. Yep, I ate it almost everyday! Because I love it that much, and because I needed that much comforting! (There’s a reason I don’t live in the Frozen Tundra anymore!)
Preheat your oven to 425 degrees F. Butter a 9×13″ baking dish and set aside.
In a small saucepan, saute the onion and mushrooms (if using) in butter until softened. In a large bowl, stir together all of the ingredients except for 1 cup of the shredded cheese.
Pour into your prepared casserole dish and top with the remaining cheese. Bake for 20-30 minutes until the casserole is heated through and the cheese is melted and bubbly!
This makes GREAT leftovers, and also freezes wonderfully, baked or unbaked!
10 Comments
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lisabella on 10.27.2019
I made this for dinner tonight. I have been looking for a good tuna casserole recipe to use as a starting point and this one was perfect. I made changes so that’s why I’m not leaving a review as I didn’t make her exact recipe.
I used egg noodles instead of penne, cream of mushroom with roasted garlic soup instead of plain cream of mushroom, left out the peas, and added 1tsp of dill. I, accidentally, forgot the sour cream. The dish was just what I’ve been looking for, full of flavor, creamy, and cheesy! Thanks so much!
cott1203 on 3.18.2011
This was the best “tuna casserole” I have ever had. This makes a bunch! I swapped out broccoli for peas and the next time I make it I will probably add another can of tuna. This ranks as yummy.
sk8ral on 5.15.2010
I’m from the frozen tundra, and this is pretty much what I remember my mom making. My cousin calls is “Brett Favre Lunch.” Good stuff – even for a picky eater.
My alterations – no mushrooms, onions, or sour cream – added a third can of tuna.
beanplant on 4.23.2010
I made it for supper yesterday and it was really good!
I used Campbell’s Gardennay Harvest Mushroom with Real Cream instead of the cream of mushroom soup to make it wheat/gluten free and frozen beans instead of peas and it worked out quite well!
Thank you for sharing your recipe!
texasfarmmomma on 3.3.2010
Great recipe. First time I’ve ever made or eaten tuna casserole. This was easy, and yummy!