Pasta puttanesca is the original poor man's meal. Inexpensive pasta gets a flavor kick from ingredients like anchovies, olives, and garlic.
While the pasta boils, dice the onion and mince the garlic. Add the olive oil to a large skillet and heat it over medium. Add the onion, garlic, anchovy filets and red pepper flakes to the oil in the skillet and sauté until softened (5 minutes).