Chili Relleno Crock Pot Recipe: Cheesy Stuffed Peppers with Effortless Flavor

This crock pot method transforms chili relleno into a hands-off masterpiece. The slow cooker tenderizes the peppers while melting the cheese into gooey perfection—no frying required.

I developed this recipe to capture all the bold flavors of traditional chili relleno with minimal effort. The peppers become soft and infused with the rich tomato sauce as they cook.

The result is a vegetarian dish that’s hearty enough to satisfy any appetite. Each bite delivers the perfect balance of spicy poblano, melted cheese, and savory sauce.

Set it in the morning and come home to a meal that tastes like it simmered all day. The slow cooker does all the work for you.

Ingredients for Chili Relleno Crock Pot

Pantry staples and fresh peppers create this slow-cooked vegetarian delight with minimal effort.

The peppers are everything here. Look for poblano peppers that are heavy for their size with smooth, glossy skin—Whole Foods or Latin markets usually have the best selection. Roasting is non-negotiable (char the skins black for easy peeling). The cheese blend matters too: Monterey Jack melts beautifully, but a sharp cheddar adds the tang you want. Buy blocks and shred yourself—pre-shredded has anti-caking agents that don’t melt as well.

No poblano peppers? Anaheim peppers work in a pinch (milder but similar texture). Out of Monterey Jack? Oaxaca or mozzarella melt just as well. The tomato sauce can be homemade or jarred—Muir Glen is a solid organic option. For extra depth, add a pinch of smoked paprika. The flour in the sauce can be swapped for cornstarch at half the amount if you prefer gluten-free.

Assemble in the morning and cook on low for 6-7 hours. Leftovers keep for 4-5 days in the fridge—reheat gently in the microwave. The sauce thickens as it sits, so thin with a splash of broth if needed. Freezes beautifully for up to 3 months.

Step-by-Step Instructions for Cheesy Stuffed Peppers

This method ensures tender peppers with perfectly melted cheese and a rich, flavorful sauce.

Step 1: Roast and Peel the Poblano Peppers

Char the 6 whole Poblano Peppers under a broiler or over an open flame until the skins blister and blacken all over, turning occasionally. This takes about 10-12 minutes. Place them in a bowl, cover with a towel, and let steam for 10 minutes.

Peel off the charred skins, then make a lengthwise slit down one side of each pepper. Remove the seeds and stems carefully to keep the peppers intact. Rinse briefly if needed to remove any remaining seeds. You should have 6 hollow peppers ready for stuffing.

Step 2: Prepare the Cheese Stuffing

In a bowl, combine the 1.5 cups Monterey Jack Cheese and 1 cup Cheddar Cheese. I prefer shredding these from blocks for better melt and texture. Stuff each poblano pepper with an equal portion of the cheese mixture through the slit you created.

Press the cheese in gently to fill the cavities completely without overpacking. The slit should close naturally around the filling. If needed, secure with a toothpick. Set the stuffed peppers aside while you prepare the sauce.

Step 3: Make the Tomato Sauce Base

Heat the 2 tbsp Olive Oil in a skillet over medium heat. Add the finely diced Onion and cook for 5 minutes until soft and translucent. Stir in the minced Garlic Cloves, 1 tsp Ground Cumin, 1 tsp Dried Oregano, 1 tsp Salt, and 0.5 tsp Black Pepper.

Cook for 30 seconds until fragrant. Add the 2 cups Tomato Sauce and 0.5 cup Vegetable Broth, then sprinkle in the 0.5 cup All-Purpose Flour. Stir well and simmer for 5 minutes until the sauce thickens slightly.

Step 4: Assemble and Slow Cook

Grease the slow cooker with a bit of the Olive Oil, then arrange the stuffed peppers in a single layer. Pour the tomato sauce mixture over the peppers, ensuring they are mostly submerged. Cover and cook on low for 4-5 hours or high for 2-3 hours.

The dish is done when the peppers are tender and the cheese is fully melted. The sauce should be bubbling gently around the edges. Avoid overcooking, or the peppers may become too soft.

Step 5: Add Final Egg Coating and Serve

In a shallow bowl, beat the 2 whole Large Eggs lightly. Carefully dip each stuffed pepper into the beaten eggs, coating all sides. Return them to the slow cooker and cook uncovered on high for an additional 15-20 minutes to set the egg coating.

Serve the peppers hot, spooning extra sauce over the top. Each serving should feature a perfectly tender pepper with a golden egg crust and gooey, melted cheese inside. The sauce will have thickened slightly and taken on a rich, savory depth from the slow cooking process.

Troubleshooting This Recipe

Peppers Not Soft Enough

If your peppers are still firm after cooking, they may need more time. Extend the cook time on low for an additional 1-2 hours. Ensure they’re fully submerged in sauce for even tenderness. I find older peppers sometimes resist softening. 💡

Cheese Leaking Out

Prevent cheese escape by not overstuffing the peppers. Use about ¼ cup cheese per pepper and press it in gently. If leaks happen, the sauce will still taste great, but the presentation suffers. Secure the slit with a toothpick if needed.

Sauce Too Thin

For a thicker sauce, mix 1 tbsp cornstarch with 2 tbsp cold water and stir into the slow cooker during the last 30 minutes. Alternatively, remove the lid and cook on high for 20-30 minutes to reduce the liquid.

Egg Coating Not Setting

The egg coating needs direct heat to set properly. If it’s not firming up, cook uncovered on high for an additional 10-15 minutes. Make sure the peppers are fully coated before returning them to the slow cooker. 🔥

Sauce Too Spicy

If your sauce is overly spicy, balance it with 1 tbsp brown sugar or ¼ cup heavy cream. Stir well and taste before adjusting further.Remember, poblano heat varies, so taste one before stuffing.

Peppers Floating in Sauce

To keep peppers submerged, place a heatproof plate or weight on top during cooking. This ensures even cooking and prevents the tops from drying out. I use a small ceramic plate that fits inside my 6-quart slow cooker.

Frequently Asked Questions