1. In a large nonstick skillet, cook the sausage, onion, water and 3/4 teaspoon garlic over medium heat for 10 minutes. Add the vinegar and fennel seed. Reduce heat; cover and simmer for 5 minutes. Remove from the heat.
2. Stir in pasta until coated. Add the tomatoes, basil and remaining garlic; stir gently. Cover and refrigerate until serving. Sprinkle with feta cheese. Yield: 9 servings.