8 ounces fresh poblano chilies (sometimes mistakenly labeled pasilla), rinsed, stemmed, seeded, and finely chopped (1 cup), or 1 can (7 oz.) diced green chilies
1 onion (8 oz.), peeled and finely chopped
1 teaspoon cumin seeds
1 1/2 cups vegetable broth
2 tablespoons cornstarch
1 to 1 1/2 cups sour cream or Mexican crema
1 can (15 oz.) black beans, rinsed and drained
1 1/2 cups green salsa (salsa verde, refrigerated or canned; about 14 oz.)
1 can (10 oz.) red enchilada sauce
12 corn tortillas (6 1/2 to 7 in. wide)
1 1/2 cups shredded mild cheddar cheese (6 oz.)
1/2 cup diced cucumber (optional)
1/2 cup coarsely chopped fresh cilantro (see notes)
Vinegared red onions (recipe follows)
How to Make It
In a 5- to 6-quart pan, combine mushrooms, poblano chilies, onion, cumin seeds, and 1/2 cup broth. Bring to a simmer over medium-high heat; cover, reduce heat, and simmer until vegetables are juicy and limp, 12 to 15 minutes. Uncover, increase heat to high, and stir often until vegetables are dry and beginning to brown, about 20 minutes.
In a bowl, blend cornstarch with the remaining 1 cup broth. Add 1/2 cup sour cream and whisk to blend. Add to mushroom mixture and stir until boiling, 1 to 3 minutes.
In a blender, whirl beans, salsa, and enchilada sauce.
Pour 1 1/2 cups bean sauce into a 9- by 13-inch baking dish. Stack 6 tortillas and cut in half. Lay 6 of the halves in casserole, straight edges against casserole sides, then overlap 3 whole tortillas to completely cover bottom. Scrape mushroom mixture onto tortillas and spread level. Fit straight edges of remaining tortilla halves against casserole sides, then overlap remaining whole tortillas to cover filling. Pour remaining black bean sauce over tortillas and spread to coat completely.
Bake in a 350° oven until sauce is bubbling, 35 to 40 minutes (45 minutes if chilled). Sprinkle with cheese and bake until melted, 3 to 5 minutes longer.
Remove casserole from oven and let stand 10 to 15 minutes. Top decoratively with cucumbers, if desired, and cilantro. Scatter about half the vinegared red onions over casserole; put remaining in a small bowl. Spoon remaining sour cream into a bowl.
With a sharp knife, cut enchilada casserole into 6 or 9 rectangles; with a wide spatula, transfer portions to plates. Add more sour cream and vinegared onions to taste.
Vinegared red onions: Peel and thinly slice 1 red onion (8 oz.). Separate rings and drop into a 10- to 12-inch frying pan. Add 3/4 cup seasoned rice vinegar and bring to a boil over high heat, stirring occasionally, 2 to 3 minutes. Remove from heat and let stand until cool, stirring often. Serve, or cover and chill for up to 3 days. Lift from liquid to use. Makes about 1 cup.
Do-Ahead Tip: You can make the filling (steps 1 and 2) and sauce (step 3) up to 1 day ahead; cover separately and chill. You can assemble the casserole (through step 4) up to 2 hours ahead; cover and chill.
my daughter is a vegetarian so i'm always on the lookout for healthy recipes. only cook this if you want rave reviews from guests. this was my first time making this recipe and i can't wait to make it again. i am an enchilada specialist, and this is a nice break. i cooked my own beans in the pressure cooker and if i had had more time i would have made my own sauces.
i recommend the red onions, cilantro and cukes for the topping... it signals this is something different and very special before the first bite. appetizer: quacamole and chips, entree served with garden salad, red wine.
We really enjoyed this recipe! It is a bit time consuming to prepare, but worth it. The pickled red onions, cucumber, and cilatro were a great topping. We were trying out recipes for a Cinco de Mayo dinner we are hosting, and out of four tries so far, this is the winner!
I'm surprised no one else has reviewed this! I've made it several times over the years for large groups - up to 32 people - and it's delicious. Do make sure to cook the vegetables down - I forgot to do that yesterday, and it was MUCH soupier than the photo here shows. Still tasted wonderful, though! I made it with the Quinoa with Latin Flavors, a mixed baby green salad, and then a Flourless Poppy Seed Cake with sliced strawberries, nectarines, and peaches for dessert. A wonderful gluten-free meal!
I did not use canned black beans - I cooked mine up the day before and refrigerated them, ready to use, and without the BPA that is in the cans.
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