Preheat oven to 400˚. Cut butternut squash in to 1/4" cubes and dice onion. Toss both with olive oil and salt. Roast until tender, 20-25 minutes.
Take slices of bread and brush olive oil on one side. Cut off the tip of the garlic and rub in along the bread. Place in oven and bake until toasted, 4-6 minutes.
In a skillet, heat 1 tablespoon olive oil over medium heat. Add in sage leaves and fry until crispy. Remove sage leaves. Once butternut squash has roasted, add to this pan and fry until lightly brown. Remove from pan and toss with goat cheese. Scoop on to toast and sprinkle fried sage (either whole or in piece) over squash.