Crumble ground beef into a large skillet over medium high heat; cook and stir until evenly browned. Add water and taco seasoning; reduce heat to low and simmer 15 minutes.
Combine salsa, cream of mushroom soup, and cream of chicken soup in a medium bowl. Reserve 3 cups cheese; stir remaining 1 cup cheese into salsa mixture.
Place 1 layer tortillas to cover bottom of a slow cooker. Top with 1 layer ground beef mixture and 1 layer reserved cheese. Repeat layering with remaining tortillas, beef mixture, and cheese, ending with 1 layer tortillas, topped with remaining cheese. Cover slow cooker.
Cook on High for 45 to 60 minutes.
Slow Cooker Enchiladas · Dinner Match Lab | Dinner Match Lab