Add the ground turkey, salt and pepper, cooking until browned, roughley 5-7 minutes.
Add tomato paste, broth, Worcestershire, and herbs, stirring to combine. Reduce heat and simmer for 5 minutes or until sauce slightly thickens.
Transfer mixture into a 1.5 quart casserole/baking dish. Top with the mashed butternut squash. Smooth with a spatula.
Place in the oven and bake for 25-35 minutes or until mashed butternut squash starts to brown. Remove from oven and cool for 10 minutes before serving.