Chopped Winter Salad

Preheat oven to 400 degrees with racks in upper and lower thirds. Halve squash; remove stem and seeds. Cut into 1-inch pieces. Arrange on a rimmed baking sheet, drizzle with 2 tablespoons oil, and season with salt and pepper; toss to coat. Arrange mushrooms on another rimmed baking sheet, drizzle with 2 tablespoons oil, and season with salt and pepper; toss to coat. Roast, flipping each once, until squash is caramelized and tender, 25 to 30 minutes; and mushrooms are golden and crisp, 30 to 35 minutes. Let cool completely.

Meanwhile, whisk together vinegar, mustard, and garlic. Slowly add remaining 1/2 cup oil, whisking until combined. Season with salt and pepper.

Arrange escarole, radicchio, squash, mushrooms, parsley, pomegranate arils, and pepitas in a large bowl or platter. Season with salt and pepper. Sprinkle with feta. Drizzle with 1/2 cup dressing; toss to coat. Serve with remaining dressing.