What kind of mixture do you use when making chili rellenos?

I'm not exactly sure what you mean by "mixture" so I just gave you my absolute favorite Chile Rellones recipe :) Hope it helps

Chile Rellenos

Picadillo:

1/2 onion, chopped

2 garlic cloves, minced

2 bay leaves

2 tablespoons canola oil

1 pound ground beef

Salt and freshly ground black pepper

1 tablespoon fresh Mexican oregano leaves

1/4 teaspoon ground cloves

1/2 teaspoon ground cinnamon

1/2 to 1 cup tomato paste

2 chipotles in adobo sauce

3 to 6 tablespoons golden raisins

3 tablespoons slivered almonds, toasted

1/2 cup pimento stuffed green olives, sliced

1/2 to 1 cup crumbled queso blanco

8 large poblanos

Vegetable oil, for frying

Flour, for dredging

Salt and freshly ground black pepper

4 eggs, separated

Tomato Ranchero Sauce, recipe follows

To prepare Picadillo: In a large skillet, saute the onion, garlic and bay leaves in oil over moderate heat, stirring, until the onion is softened. Add the beef, and continue to cook until the beef is no longer pink; breaking up any lumps with a wooden spoon. Season with salt and pepper. Stir in oregano, cloves, and cinnamon. Pour out any excess fat and stir in the tomato paste until thoroughly incorporated. Add chipotles, raisins, almonds, and olives; salt to taste. Remove from heat. When mixture is cool, add cheese and mix well.

Char the flesh of the peppers over a gas flame, under a broiler or on a grill. Alternatively, set a rack over an electric burner or use a very hot heavy frying pan. Cook, turning frequently, until the skins are blistered all over. Take care not to overcook and burn right through the pepper. Put peppers in a bowl, cover with plastic wrap and let sweat for about 10 minutes to loosen the skins. Rub off as much skin as possible and cut a slit along the side of each pepper, keeping the stems and tip intact. Carefully remove the seeds and inner membranes, but do not rinse with water.

Heat 1-inch of oil in a heavy skillet over medium heat until very hot. Place flour in a shallow platter and season with salt and pepper. Beat egg whites until foamy, add a pinch of salt, and whip to stiff peaks. Lightly beat the egg yolks and fold into the whites. Stuff the chiles with picadillo, leaving enough room to close the opening. Overlap the seam slightly and gently squeeze closed. Secure with wooden toothpicks if desired. Pat the peppers dry and lightly coat in the seasoned flour. Pick the chile up by its stem and dip into the egg batter, making sure they are well covered, tap off excess. Fry until evenly browned, about 3 minutes each side. The egg burns easily so take care not to cook too long. Drain on paper towels. To serve, ladle a pool of Tomato Ranchero sauce on plates and set chiles rellenos on top, serve immediately.

Tomato Ranchero Sauce:

28-ounce can diced tomatoes

1/2 onion, roughly chopped

1/2 cup cilantro, roughly chopped

Pinch cumin seeds, toasted

1 garlic clove

2 tablespoons canola oil

1/2 cup chicken broth

Salt

Sugar

Dash hot red pepper sauce

Combine and puree the tomatoes, onion, cilantro, cumin, and garlic in a food processor.

Heat the oil in a saucepan or skillet and fry the tomato puree over high flame. Add broth, and salt. Simmer for 10 minutes until the sauce thickens slightly and is heated through. If sauce tastes somewhat bitter, add a pinch of sugar. Sprinkle with a dash of hot red pepper sauce. Sauce may be served hot or cold.

Chile Relleno Quiche

Serves 6

1 (27 oz can) Green Chiles, whole

2 (8 oz bags) Mexican Style Cheddar Cheese

1-1/2 Cups Eggbeaters

1/4 Cup All-Purpose Flour

1/2 Tsp Salt

3 Seconds Nonstick Cooking Spray

Instructions:

Preheat the oven to 375°F

Coat a 9x13'' baking dish with nonstick cooking spray.

Thoroughly blend eggs, flour, and salt. Pour a thin layer on bottom of baking dish reserving more than half for topping.

Clean any seeds and membranes out of the peppers.

Place in a single layer of peppers in the baking dish and layer cheese evenly over them using about 3/4 of the cheese. Top with the remaining peppers in a single layer.

Cover with the remaining egg mixture. Sprinkle the remaining cheese over the top. Bake until cheese is melted and slightly browned, about 30 minutes.

Ok, I had just a quick answer, so, give someone else the points. But what I thought you meant was for the batter, and I was going to suggest wonton wrappers. Yeah, it's cheating, kind of, but it's way less messy than dredging, they fry up nice every time without getting soggy too quick after you pull them out, and you don't have to worry about your cheese mixture leaking into the oil. Hope this helps!