Roasted Squash and Wheat Berry Stuffing

Name: Roasted Squash and Wheat Berry Stuffing
Ingredients: 1/4 Teaspoon extra-virgin olive oil, plus more to taste; 1/2 Cup Spanish olives, pitted and diced; 1 Cup wheat berries; 4 1/2 Cups water; 1/8 Teaspoon fresh thyme; 1/8 Teaspoon fresh marjoram; 1/2 Teaspoon kosher salt, plus more to taste; Cracked black pepper, to taste; 1/2 Cup diced red chard stems; 1 Cup red chard leaf ribbons; 1 red kuri, pumpkin, or acorn squash, quartered and seeded; 1 zucchini, diced (about 2 cups); 4 Tablespoons pepitas