12 oz. penne pasta
8 slices bacon
1 medium red onion, chopped
3 cloves garlic, chopped
1/4 tsp. red pepper flakes
1 tsp. salt
4-5 cups chopped tomatoes (or cherry or grape tomatoes, halved)
1/3 cup half-and-half or cream
4 cups arugula
2 tblsp. chopped fresh basil (about 10-12 leaves)
grated Parmesan cheese