Halibut Asparagus Stir Fry

1 lb fresh asparagus , cut into 1 inch pieces or 10 ounces frozen asparagus , thawed and drained 1 lb halibut, cut into 1 inch pieces (or another lean fish) 1[...]

12 ounces asparagus , cut into 2in . pieces 8 ounces mixed mushrooms, halved if large 3 scallions , cut into 2 in. pieces 4 teaspoons extra virgin olive oil 2[...]