Cheesy Taco Chicken and Potato Casserole

Name: Cheesy Taco Chicken and Potato Casserole (Slow Cooker)
Prep time: 10 min
Cook time: 4 h
Total time: 4 h 10 min
Yield: 6 servings
Cuisine: American
Ingredients: 1.5 lbs chicken breast, thinly sliced; 1 medium yellow onion, diced; 1 tbsp minced garlic; 2 tbsp taco seasoning; 1 (10 oz) can diced tomatoes with green chiles; 1 (32 oz) bag frozen diced potatoes; 1 (10.5 oz) can cream of chicken soup; salt, to taste; black pepper, to taste; 1/2 cup sour cream; 2 cups shredded Colby Jack cheese, divided; 2 tbsp fresh parsley, chopped, for garnish; Sriracha, for serving; Sour cream, for serving

This slow cooker cheesy taco chicken and potato casserole is a hands-off one-pot meal that combines taco-seasoned chicken, frozen potatoes, and a creamy base for an easy weeknight dinner that feeds a family with minimal prep work.

⚡Slow Cooker

🌍American 🏷️Slow cooker 🏷️Casserole 🏷️Chicken 🏷️Potato

🏷️Cheesy

🏷️Taco chicken

-0:00

cookinginthemidwestonTikTok

Total

4h 10m

Servings

6

Difficulty

Easy

Est. Cost

$26–$43

Recipe Source

View original recipe

From TikTok · by cookinginthemidwest

-0:00

cookinginthemidwestonTikTok

Ingredients

1.5 lbs chicken breast, thinly sliced
1 medium yellow onion, diced
1 tbsp minced garlic
2 tbsp taco seasoning
1 (10 oz) can diced tomatoes with green chiles
1 (32 oz) bag frozen diced potatoes
1 (10.5 oz) can cream of chicken soup
salt, to taste
black pepper, to taste
1/2 cup sour cream
2 cups shredded Colby Jack cheese, divided
2 tbsp fresh parsley, chopped, for garnishoptional
Sriracha, for servingoptional
Sour cream, for servingoptional

14 Ingredients

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Instructions

1
Place the sliced chicken, diced onion, and minced garlic into the basin of a slow cooker.
2
Sprinkle with taco seasoning and stir to coat the chicken and vegetables.
3
Add the can of diced tomatoes with green chiles, the bag of frozen potatoes, and the can of cream of chicken soup.
4
Season with salt and pepper and stir everything together to combine.
5
Cover and cook on low for 6-8 hours or on high for 4 hours, until the chicken is cooked through and the potatoes are tender.
6
Stir in the sour cream and 1 cup of the shredded cheese until well combined.
7
Top with the remaining 1 cup of shredded cheese.
8
Cover again and cook for another 15-20 minutes, or until the cheese is fully melted.
9
Garnish with fresh chopped parsley before serving.
10
Serve warm, with an optional dollop of sour cream and a drizzle of sriracha.

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Tips & Notes

Pro tips

Thinly slice chicken breasts to ensure even cooking and prevent dry spots — aim for ¼-inch thickness.
Stir in sour cream only at the very end after cooking is complete to prevent curdling from prolonged heat.
Taste and adjust salt before serving since taco seasoning and cream of chicken soup already contain sodium.
Layer ingredients strategically: onion and garlic on the bottom prevent sticking, then chicken, then potatoes, then liquids for best texture.

Substitutions

Cream of chicken soup → cream of mushroom soup (slightly earthier flavor, works equally well)
Sour cream → Greek yogurt or Mexican crema (tangier taste, same creamy texture)
Diced tomatoes with green chiles → diced tomatoes plus 1 tbsp diced jalapeños (control spice level)
Taco seasoning → 1 tbsp chili powder + ½ tbsp cumin + ½ tbsp paprika (homemade, fresher flavor)

Storage & make-ahead

Refrigerate in an airtight container for up to 4 days. Reheat gently on low in a slow cooker or covered in the oven at 325°F for 20-30 minutes, stirring occasionally. Freezes well for up to 3 months; thaw overnight before reheating.

Equipment

slow cooker (4-6 quart capacity)

Common Questions

Can I use fresh potatoes instead of frozen?

Yes. Dice fresh potatoes into ½-inch pieces and add 30-45 minutes to the cooking time, or until potatoes are tender. Frozen potatoes cook faster since they're partially precooked.

How long does this casserole cook on low vs. high?

Cook on low for 6-8 hours or on high for 3-4 hours. Low heat ensures chicken stays moist and flavors meld better.

Can I make this ahead?

Yes. Assemble ingredients in a freezer bag (except sour cream), freeze for up to 3 months, thaw overnight, and add to slow cooker. Stir in sour cream at the end.