Butternut Squash without parmigiano tenders

1 pound sourdough bread 1 loaf, crusts removed, cut in 1/2-inch cubes, about 10 cups * 1/3 cup pumpkin seeds 2 3/4 teaspoons butter divided 2 tablespoons[...]

2 medium butternut squash , halved and peeled cooking spray 1 teaspoon olive oil 5 garlic cloves , chopped 1 lb white button mushrooms , cleaned and thinly[...]