1 acorn squash
½ yellow onion, diced
½ pound chicken or turkey sausage (in casing), cut into ½-inch coins
1/3 cup sundried tomatoes
2 cups baby spinach
1 clove garlic, minced
2 teaspoons cumin
2 teaspoons chili powder
Preheat broiler. Cut acorn squash in half lengthwise from stem to stem, remove any remaining seeds, and lay cut side down on a microwave-safe plate. Microwave in 3-minute intervals until completely softened and cooked through, 5 to 7 minutes.
Heat olive oil in a skillet over medium-high heat. Add onion and sausage and cook until lightly browned, about 6 minutes. Add spinach, garlic, chili powder and cumin. Cook 2 minutes more, then remove from heat and add sundried tomatoes. Season with salt and pepper to taste.
Place acorn squash on a baking sheet and fill with sausage mixture. Broil 3 minutes, or until the top is golden.