Spicy Chicken without lettuce vinegar

1 1/2 pounds chicken breasts boneless, skinless 2 tablespoons olive oil approximately 1 x salt and black pepper * 2 each onions thinly sliced 4 cloves garlic[...]

8 each corn tortillas * 1 pound chicken breast halves, boneless and skinless trimmed of fat and cut into thin strips 1 x salt to taste * 2 teaspoons canola[...]