Chunky Chicken Hash Casserole


By Emma
Certified Culinary Professional
Ingredients
- 5 cups shredded frozen hash browns, thawed slightly
- 3 cups cooked, shredded rotisserie chicken (can swap for turkey or pulled pork)
- 1 cup diced cooked ham instead of bacon, for twist
- 2 cups shredded sharp cheddar cheese, divided
- 1¼ cups mixed frozen vegetables, thawed (corn, peas, carrots)
- 1 can 10.5oz condensed cream of mushroom soup (swap cream of chicken)
- ¾ cup whole milk
- 1 tsp fresh thyme leaves or ½ tsp dried
- 1 tsp kosher salt
- 1½ cups cornflakes cereal, crushed lightly
- Optional garnishes: chopped parsley, sliced green onions, chili flakes, diced tomatoes
About the ingredients
Method
- Start by preheating your oven to 405°F. Got a gas stove? Fan assist? Slightly adjust time if needed. Hot oven gets hash brown skin crisp without turning rubbery.
- In a big mixing bowl, toss hash browns with shredded chicken, diced ham (for smoky sweet twist), half the cheese, mixed veggies, the condensed mushroom soup, milk, thyme, and salt. Mix gently, don’t pulverize - you want texture chunks visible through the creaminess. Overmixing = mush.
- Grease your 9×13 baking dish lightly. Pour that mix in. Level it but don’t press like a brick; air pockets help heat distribute evenly. Don’t skip the grease—keeps crust from sticking, means easier serve.
- Sprinkle the remaining cheese over the top, then cover with crushed cornflakes. The flakes form a crunchy crust that contrasts creamy interior. If flakes risk burning, add foil sooner or toss some butter over flakes for golden coloring.
- Cover the dish tightly with foil. Slide it into the oven. Bake for about 32-35 minutes—look for bubbling sauce edges and steam escaping from foil vents. You want a thick slow simmer.
- Remove foil carefully—watch out for steam! Then bake another 12-17 minutes uncovered until cornflakes are toasted golden brown but not blackened. Listen for crackling topping. If it browns too fast, tent foil back loosely.
- Take it out. Let rest at least 10 minutes, preferably 15. This lets liquid thicken up so you’re not slicing soup. Cooler casserole holds shape better; no puddles on plate.
- Finish with fresh parsley, chili flakes for heat, or bright tomato chunks to cut richness. Green onions add bite. Each garnish changes vibe—try all, see which you like best.
- If you lack cream soup, make quick roux with butter, flour, and chicken broth plus cream for thick sauce. Works well but needs patience and stirring. Don’t skip thawing hash browns or they’ll bake raw inside and toughen edges.
- Mistakes? Overbake and cheese burns or flakes scorch, underbake, and interior is watery. Adjust foil use and timing as needed. Baking is art, not exact science here.
Cooking tips
Chef's notes
- 💡 Preheat oven hotter than usual, 405°F helps crisp hash brown skin without drying inside. Watch for steam vents puffing through foil. Adds moisture control. Crackles start mid-bake, not first few mins.
- 💡 Mix ingredients gently. Avoid mushy blobs or powdery textures. You want visible chunks of chicken and hash browns through creamy soup and milk. Overmixing kills texture. Less is more.
- 💡 Grease pan well. Cornflake crust sticks hard if the dish is dry or ungreased. Air pockets in casserole help heat reach through evenly. Don’t press like brick, spreads heat better and avoids dense spots inside.
- 💡 When topping with cornflakes, toss some butter over flakes if fragile browning worried. Adds color and crunch, stops quick burning. If spots char too soon, foil-tent loosely halves cook time. Monitor after foil removal closely.
- 💡 Rest casserole 10-15 minutes minimum. The thickener in cream soup solidifies, sauce firms up. Cut too hot and runny soup escapes. Cooler casserole holds shape better, cleaner slices. Sharp knife essential here.
Common questions
Can I swap chicken for turkey or pork?
Yes. Shredded turkey works fine, pulled pork adds sweetness. Ham instead of bacon shifts salt balance. Adjust salt accordingly. Texture and flavor change but no problem.
What if no cream of mushroom soup?
Make roux base with butter and flour. Add broth with some cream or milk. Takes stirring, patience to thicken. Avoid skipping soup entirely; watery result likely. Roux gives control on thickness.
Why does my cornflake topping burn fast?
Usually dry flakes, missing butter toss or foil protection. Oven too hot or uncovered too long early. Tent foil if crust darkens too fast. Butter adds fat for even browning.
How to store leftovers?
Fridge up to 3-4 days in airtight container. Reheat covered in oven low-temp keeps moisture. Freeze wrapped tightly, best within a month for quality. Microwave reheating risks soggy crust.