Tex-Mex Beef Enchiladas

This one was lifted straight from this website: 

http://www.marthastewart.com/313621/tex-mex-beef-enchiladas

My freezer group made it - just had it tonight - it was awesome.  She also made it with shredded chicken. She also didn't roll the enchiladas, she just put them on top and made it like a casserole.  I'm a fan!  You need to double it  to make one for a freezer meal and one to eat tonight! 

Ingredients

• 2 tablespoons olive oil
• 1/4 cup all-purpose flour (spooned and leveled)
• 1 can (14 1/2 ounces) reduced sodium chicken broth
• 1 1/2 tablespoons chili powder
• 1 small chipotle chile in adobo, minced, plus 1 tablespoon sauce (from a small can)
• 1 small onion, finely chopped
• 2 garlic cloves, minced
• 3/4 pound lean ground beef
• Coarse salt and ground pepper
• 8 corn tortillas (6-inch)
• 1 1/2 cups shredded cheddar cheese (6 ounces)
• 1/4 cup chopped cilantro

Directions

1. Make sauce: In a medium saucepan, heat 1 1/2 tablespoons oil over medium. Add flour and cook, whisking occasionally, 1 minute. Add broth, chili powder, chipotle and adobo sauce, and 3/4 cup water; bring to a boil, whisking constantly. Reduce heat, and simmer until lightly thickened, about 10 minutes.
2. Make filling: In a 10-inch nonstick skillet, heat remaining 1/2 tablespoon oil over medium-high. Add onion, garlic, and beef; season with salt and pepper. Cook, stirring, until cooked through, about 8 minutes.
3. Preheat oven to 350 degrees. (If freezing, don't place any sauce in baking dish.) Spoon 1/4 cup sauce in bottom of an 8-inch square baking dish. Set aside. Make enchiladas: Stack tortillas; wrap in foil, and warm in oven, 10 minutes. Fill each with a heaping 1/4 cup beef mixture and 2 tablespoons cheese; tightly roll up.
4. Raise oven heat to 450 degrees. Arrange enchiladas, seam side down, in baking dish. Top with remaining sauce; sprinkle with cheese. Bake, uncovered, until hot and bubbly, 15 to 20 minutes. Let cool 10 minutes before serving. Serve garnished with cilantro and, if desired, a green salad.