Place squash slices on a greased cookie sheets. Drizzle the olive oil over the squash. Add salt. Bake for 15 minutes and turn over. Bake another 15 minutes.
In a small bowl melt butter and brown sugar together. Add a couple dashes of rosemary. Drizzle over the squash. Sprinkle the nuts over if using. Add another dash or two of salt. Bake 10 more minutes or until the brown sugar butter mixture starts to caramelize.
Recipe by Recipes Food and Cooking at https://recipesfoodandcooking.com/2017/09/15/roasted-acorn-squash/