Combine water and wheat berries in a large saucepan; bring to a boil.
Partially cover; reduce heat and simmer 1 hour or until wheat berries are tender.
Drain and set aside.
Melt margarine in a large skillet over medium-high heat.
Add mushrooms and next 3 ingredients; saute until vegetables are tender and liquid is absorbed.
Arrange zucchini and asparagus in a vegetable steamer over boiling water.
Cover and steam 3 to 5 minutes or until crisp-tender.
Combine wheat berries, vegetables, and salt in a serving bowl; toss gently.