Crumble The Ground Beef Into A Skillet Over Medium-High Heat. Cook And Stir Until Evenly Browned. Add Taco Seasoning And Water; Simmer For 15 Minutes Over Low Heat. In A Medium Bowl, Stir Together The Salsa, Cream Of Mushroom Soup And Cream Of Chicken Soup. Mix In Most Of The Cheese, Reserving 3/4 Cup For Later. Place A Layer Of Tortillas Covering The Bottom Of A Slow Cooker. Scoop A Layer Of The Ground Beef Over That, And Then Spoon A Layer Of The Cheese Mixture. Repeat The Layers Until You Run Out Of Stuff, Ending With A Layer Of Tortillas On The Top. Top With Remaining Cheese. Cover, And Cook On High For 45 Minutes To 1 Hour.