Halibut without tilapia

1 tablespoon extra virgin olive oil 1 large Spanish onion , chopped 1 large leek , white and tender green parts, halved lengthwise and sliced crosswise 1/4[...]

1 tablespoon olive oil 3/4 lb carrot , cut in 1/4 inch dice 1 cup chopped leek 1 cup chopped onion 4 celery ribs , cut in 1/4 inch dice 6 ounces arugula or 6[...]

1 tablespoon extra virgin olive oil 1 large Spanish onion , chopped 1 large leek , white and tender green parts, halved lengthwise and sliced crosswise 1/4[...]

1 tablespoon olive oil 3/4 lb carrot , cut in 1/4 inch dice 1 cup chopped leek 1 cup chopped onion 4 celery ribs , cut in 1/4 inch dice 6 ounces arugula or 6[...]