Creamy Poblano Rice Casserole with Corn
A comforting baked rice casserole layering fluffy rice with roasted poblano chiles, sweet corn, and a tangy sour cream mixture bound together with melted cheddar cheese. The dish balances earthy chiles against bright cilantro and cooling sour cream for a crowd-pleasing side that works equally well alongside grilled meats or as a vegetarian main. This version combines two cooking methods—stovetop rice and pan-seared chile mixture—for depth, making it ideal for weeknight dinners or potlucks when you need something that reheats beautifully.
Ingredients
- 4 cup water
- 2 cup rice
- 1 tablespoon butter
- 2 teaspoon salt
- 2 cup sour cream
- ½ cup onion, chopped
- ¼ cup cilantro, chopped
- 1 clove garlic, minced
- 2 tablespoon lard or vegetable oil
- 2 poblano chiles, roasted, peeled, deveinedAnaheim or mild green chile1:1heat
less depth, milder spice
- 1 clove garlic
- 16 ounce corn, canned, drained
- ½ lb cheddar cheese, grated
Instructions
- 1
Bring water to a boil with butter and salt. Add rice and return to a boil. Reduce heat to very low, cover tightly, and cook 25 to 30 minutes. Spread rice on baking sheet to cool or cool uncovered in pan.
- 2
Combine sour cream with chopped onion and cilantro. Season with salt to taste.
- 3
Heat lard in frying pan over medium heat. Add chopped onion and minced garlic clove. When onion wilts, dice the roasted poblanos and add to pan. Saute for one minute. Cool completely and fold into cooled rice.
- 4
Drain corn thoroughly and add to rice mixture. Fold in sour cream mixture and grated cheese until combined.
- 5
Transfer to baking dish and bake at 350 degrees for 30 minutes or until heated through. Use 325 degrees if using pyrex.
Tips
Cool rice completely before mixing with other ingredients to prevent the cheese and sour cream from breaking. Spread on a sheet for faster cooling if short on time.
Roast poblanos directly over a gas flame or under the broiler until charred, then wrap in foil for 5 minutes before peeling. This loosens the skin significantly.
The dish can be assembled up to 2 days ahead and refrigerated before baking. Add 10 extra minutes to baking time if baking from cold.
Good to Know
Cover and refrigerate up to 4 days. Reheat covered at 325 degrees until warmed through, about 20 minutes.
Assemble completely, cover, and refrigerate up to 2 days before baking. Bake directly from refrigerator, adding 10 minutes to baking time.
Serve warm as a side dish alongside grilled chicken, pork, or fish. Works equally well as a vegetarian main with a simple salad.
Common Mistakes
Do not skip cooling the rice completely; warm rice will cause sour cream to curdle when mixed.
Do not skip draining the canned corn thoroughly; excess liquid will make the casserole watery.
Do not cover poblanos with foil immediately after charring; let cool slightly first or they become soggy.
Substitutions
Dairy-Free Swaps
General Alternatives
use certified gluten-free rice
less depth, milder spice
FAQ
Can I make this without roasting fresh poblanos?
Yes. Use frozen roasted poblanos or substitute with one 7-ounce can of diced green chiles, drained. Canned chiles are milder and more watery, so reduce sour cream mixture by 2 tablespoons to maintain texture.
What if the casserole looks dry after baking?
Drizzle with additional sour cream or a splash of chicken broth before serving. This usually indicates the corn wasn't drained adequately or too much rice absorbed liquid during cooling. Stir gently to redistribute moisture.
Can I freeze this casserole after baking?
Yes. Cool completely, cover tightly, and freeze up to 3 months. Thaw overnight in the refrigerator and reheat covered at 325 degrees for 30-35 minutes. Texture remains creamy, though sour cream-based dishes may separate slightly upon freezing.