Easy Burritos - cooking recipe

Ingredients

1 large onion, sliced into rings
4 lbs lean beef chuck roast
1/2 cup water
2 (1 1/4 ounce) packages taco seasoning mix, spicy variety preferred
16 flour tortillas
16 ounces fat-free cheddar cheese, shredded
3 tomatoes, diced
1 head iceberg lettuce, shredded
2 cups fat free sour cream

Preparation

Place onion rings in bottom of crockpot. Place meat on top. Add water. Sprinkle ONE package of seasoning on top.
Cook on low for 8 hours.
Shred roast with forks. Add second package of seasoning and stir well. Turn on high for 1/2 hour.
Assemble burritos using tortillas, cheese, tomatoes, lettuce, and sour cream.