In a large frying pan, heat oil and butter over medium.
Sauté onion 1 minute.
Add garlic and sauté lightly.
Set aside on a plate.
In the same pan, sauté beef and sausage until partly brown.
Set aside on separate plate.
In a large frying pan, heat oil on medium and sauté onion and fennel, approximately 1 minute.
Add garlic, red pepper, and ½ of the herbs.
Sauté several minutes to blend flavors. Salt and pepper to taste.
Remove to plate.
In the same pan, add sausage and brown until cooked, stirring frequently.
Remove excess fat. Return onion mixture to the pan and continue to cook about 5 minutes.
Add remaining fresh thyme.
Add small amount of water if necessary to keep the mixture moist.
Adjust seasoning to taste and stuff yams. If needed, cover with aluminum foil and place in 350 degree oven to heat through.
Add small amount of oil and return onion to the pan.
Add eggplant, mushrooms, and half the rosemary.
Mix well and cook several minutes.