King Ranch Casserole with Rotel Tomatoes

A Tex-Mex inspired layered casserole combining seasoned shredded chicken, creamy sauce, corn tortillas, and melted jack and cheddar cheese. Smoky chili and cumin spices are balanced with fresh lime and cilantro, while roasted poblano and bell peppers add depth. The sauce incorporates both heavy cream and sour cream for richness. Serve as a comforting weeknight dinner or casual gathering dish. This version uses fresh poblanos and lime zest rather than relying solely on canned peppers, creating a more vibrant flavor profile than traditional recipes.
Ingredients
- 4 cup cooked shredded chicken, chopped or shredded
- 2 teaspoon chili powder
- ½ tablespoon cumin powder
- ¼ teaspoon garlic powder
- ¼ teaspoon cayenne
- ¼ cup unsalted butter
- 2 tablespoon all-purpose flour
- 1 cup onion, chopped
- ½ cup bell pepper, chopped, red, yellow or orange
- 1 cup poblano pepper, chopped
- 1 can rotel tomatoes with green chilies, mild, draineddiced tomatoes with green chilies1:1can
lower sodium option
- 1 cup chicken stock
- ½ cup heavy cream
- ½ cup sour cream
- 2 teaspoon lime zest
- ⅛ cup fresh cilantro, chopped
- kosher salt
- black pepper, freshly cracked, to taste
- 12 corn tortillas
- 2 cup jack cheese, shreddedmonterey jack or oaxaca1:1dairydairy-free
similar melting
- 2 cup cheddar cheese, shredded
- sour cream, for garnish(optional)
- cilantro, fresh, chopped, for garnish(optional)
Instructions
- 1
Preheat oven to 350F.
- 2
Toss chicken with chili powder, cumin, garlic powder, and cayenne.
- 3
Melt butter in large skillet and whisk in flour. Cook and stir until lightly browned, about 3 minutes.
- 4
Add onion and bell and poblano peppers. Cook and stir until just tender.
- 5
Add drained tomatoes and cook 2 minutes. Slowly add chicken broth, then cream, stirring until incorporated and heated through.
- 6
Reserve 1/3 cup sauce. Add chicken to skillet and stir to heat through. Mix in sour cream, lime zest, cilantro, salt, and pepper. Remove from heat and taste for seasoning.
- 7
Spread reserved sauce on bottom of casserole dish. Layer with 6 tortillas, overlapping.
- 8
Spoon half the chicken mixture over tortillas. Sprinkle half the mixed cheeses.
- 9
Add remaining 6 tortillas, remaining chicken mixture, and top with remaining cheese.
- 10
Bake 30-35 minutes until bubbly and lightly browned on top.
- 11
Rest 5-10 minutes before slicing. Serve with sour cream and cilantro.
Tips
Let casserole rest 5-10 minutes after baking for clean, structured slices instead of a jumbled serving.
Warm tortillas briefly before layering to prevent cracking and ensure they absorb sauce evenly.
Reserve extra sauce before adding chicken so you have a flavorful, cheese-free layer at the bottom that prevents sogginess.
Good to Know
Cover and refrigerate up to 3 days. Reheat covered at 350F for 15-20 minutes until warmed through.
Assemble casserole completely up to 24 hours ahead. Cover tightly and refrigerate. Bake directly from cold, adding 5-10 minutes to bake time.
Serve warm with lime wedges, extra cilantro, and additional sour cream on the side. Pairs with Mexican rice, black beans, or a simple green salad with lime vinaigrette.
Common Mistakes
Do not skip the roux browning step to avoid a raw flour taste in the sauce.
Do not rush adding cream to hot broth to avoid curdling; add slowly while stirring.
Do not skip the resting period to avoid a falling-apart casserole when plating.
Substitutions
Dairy-Free Swaps
similar melting
General Alternatives
lower sodium option
FAQ
Can I make this vegetarian?
Replace chicken with cooked black beans and corn, adjusting stock to 1.5 cups to account for lost moisture. Add a cup of mushrooms sauteed with the peppers for umami depth. Cooking time remains the same.
Can I freeze King Ranch Casserole?
Freeze unbaked casserole up to 3 months. Thaw overnight in refrigerator and bake as directed, adding 10-15 minutes to account for cold dish. Do not freeze after baking, as texture becomes watery upon reheating.
What if I do not have poblano peppers?
Use additional bell peppers, anaheim chiles, or add a tablespoon of canned diced green chiles. Fresh poblanos add mild smoke; substitutes will shift flavor slightly but remain delicious.