1
Adjust rack to top position (top and middle positions for 4 servings) and heat broiler to high. Place cream cheese in a small bowl of warm water to soften. Wash and dry produce.
Trim and quarter mushrooms (skip if your mushrooms are pre-sliced!). Trim and halve zucchini lengthwise; cut crosswise into ΒΌ-inch-thick half-moons.