I make this a lot, especially when I don't have much time. Cook a half cup to a cup of pasta. While that's cooking, put some olive oil in a skillet. Use a garlic press or mortar and pestle to crush 2-3 cloves of garlic. Add that to the oil. Add a 2-4 teaspoons of Italian seasoning. Add salt and pepper to taste. Heat the skillet over low heat until the garlic just begins to sizzle, and turn it off immediately (remove it from the heat, if you use an electric stove). Pour over the cooked pasta and toss to coat. Top with shredded Parmesan cheese.
You can add tofu, chickpeas, lentils, or meat to make it a more complete meal. You should probably also serve it with salad or add chopped vegetables to it (sautee them together with the garlic until tender -- just be careful to keep the heat low, and keep stirring it so the garlic doesn't burn). It doesn't get old!