Taco Filling

1 large, ripe tomato, roasted, then
    peeled and roughly chopped
1/2 small onion, chopped
1 clove garlic, peeled and chopped
1 tablespoon lard or vegetable oil
1 whole chicken breast, cooked
    skinned, boned and shredded
1/2 teaspoon salt

Combine tomato, onion and garlic in a blender and process until very smooth. Heat the lard or oil in a medium-size skillet over medium-high heat. When quite hot, add the pur