Preheat over to 400*
In a large skillet heat cooking oil on medium high heat
Once oil is hot add ground beef and sausage
In a separate pan, heat additional tsp of oil on medium
Once oil is heated add chopped onion and fennel, salt to taste
Cook until translucent
Add garlic and cook an additional 3 minutes until cooked through and remove from pan
In the same pan add a touch more oil and cook mushrooms until tender
Add fennel, onion and mushrooms into cooked beef and sausage
Add crushed tomatoes, tomato paste, kale and thyme to pan and combine
Lower heat to medium lower and let simmer for 10-15 minutes
Salt and pepper to taste
Meanwhile, cut squash in half lengthwise and hollow out seeds
Drizzle olive oil over hollowed out squash and sprinkle with salt and pepper
Stuff squash cavities with beef mixture and place in a baking pan
Bake for 30 minutes