great greek pasta

So, finally a recipe that isn't originally from 6 o'clock scramble.  (I think I've exhausted most of the vegetarian ones in there anyway. :)
I found this recipe in my saving dinner book.  It originally had chicken in it.  I have adapted it to not have chicken although I did serve it with the option of chicken - which all of my children chose.  (I just used some pre-cooked I had in the freezer - thawed it in the microwave and added it on top.)  I had mine without the chicken.  Either way it was a nice pasta salad.  I did not use all of the pasta.  Would definitely have been too dry.

Ingredients

• 1 pound rigatoni (I didn't use it all -you'd be fine with 12-16 oz.)
• 1 Tablespoon butter
• 1 Tablespoon olive oil
• 2 cloves garlic, pressed
• 1 cup diced onion (I used sweet onion)
• 1 large tomato, chopped (I actually used 1 roma and a few cherry tomatoes)
• 1/2 cup Feta cheese, crumbled
• 2 Tablespoons lemon juice
• 2 teapsoons oregano
• salt and pepper to taste
• Optional, chopped, cooked chicken

Directions

1. Cook pasta according to package directions.
2. Meanwhile in a large skillet, saute onion in butter until fragrant.  Add garlic and saute a bit more.  Reduce heat and add tomato, feta, lemon juice and oregano.  Stir to combine.  Add pasta and stir until completely heated through.  Salt and pepper to taste and serve.