Cook your pasta according to the package directions. When it's cooked, drain and set aside, but keep aside 1 cup of the pasta water.
Add olive oil and chopped onions to a pot on medium heat and sauté until the onions are softened.
Add crushed garlic and red pepper flakes and sauté for a minute to lightly toast the spices.
Add chopped sun dried tomatoes and mix them in with the onions. Sauté for a minute or two to heat them and blend the flavors.
Reduce the heat and add in hummus, lemon juice and half a cup of pasta water and mix in. You can keep adding small amounts of pasta water into the sauce to get it to the consistency you want it.
Cook until the sauce is heated through.
Now add in chopped basil, salt and pepper and stir in.
Add the cooked pasta and toss together gently until the pasta is well coated with the sauce.
You can add in more pasta water at this stage if you want it to be more saucy.
Serve in bowls topped with freshly ground black pepper with lemon wedges on the side.