Cut squash in half lengthwise; scoop out seeds and fibers.
Place in baking pan, cut-side-down; add 1/2 inch water.
Bake in preheated 400°F oven 20 minutes.
Meanwhile cook sausage meat in skillet until browned.
Drain off excess fat; add butter to pan.
Add onion, apple, cabbage and almonds; cook until vegetables are tender.
Add seasonings; mix well.
Turn squash halves cut-side-up; fill centers with cabbage mixture.
Return to baking pan; bake in 400°F oven 30 minutes.