Quinoa and Mushroom Stuffed Acorn Squash

Name: Quinoa and Mushroom Stuffed Acorn Squash
Ingredients: 3 large acorn squash, halved lengthwise and seeded; 1 tbsp. olive oil; 1 1/2 tsp. kosher salt; 7 tbsp. salted butter; 1/3 c. maple syrup; 2 tbsp. fresh rosemary, finely chopped; 1 c. quinoa; 1 large shallot, finely chopped; 12 oz. shiitake and/or cremini mushrooms, stems removed, and thinly sliced; 1/2 c. fresh parsley, finely chopped; 1/2 c. grated parmesan cheese; 1/2 c. salted roasted almonds, roughly chopped; 1/2 tsp. black pepper