Preheat oven to 350º

In a Casserole dish ( I use an 8x11) do a layer of 1/2 C. of salsa on bottom of dish.

In small bowl whisk together your sour cream and milk until smooth.

In a large skillet over medium heat: brown meat,then drain off excess grease. Next add your taco seasoning, 2 C. of remaining salsa and your beans; allow to heat thru. remove from heat.

Now its time to start layering. There will be a total of 3 layers as following: Noodles (3) Sour Cream ( about 1/3C. per layer) Cheese ( about 3/4 C. per layer, will be an extra 3/4 C. for topping) Thin layer of Meat and Bean sauce ( Divide into Thirds)

Once you ended in your 3rd layer of meat; cover with aluminium foil and place in the oven for about 1 -1 1/2 hour.Mine typically takes about 1 hour and 15 minutes.

Remove from oven and immediately uncover to top with your remaining cheese so it can melt; recover and allow to set for 5 or so minutes before serving.