Cook pasta in boiling salted water according to package directions, approximately 9-12 minutes. Drain and set aside.
Heat olive oil, butter and garlic clove in a large nonstick skillet over low heat for 3-5 minutes. Discard garlic.
At this point you could toss some cooked noodles with just enough of the olive oil mixture and grated parmesan to coat pasta. Season to taste with salt & pepper and serve alongside roasted chicken. Or dice the chicken and stir into the pasta.
For a more flavour-packed sauce, stir tomatoes, olives, capers, parsley and lemon zest into the remaining oil mixture over low heat until warm, about 3 minutes. Toss sauce with remaining cooked pasta and grated parmesan to coat. Season to taste with salt and pepper, and serve with roasted chicken.
Tip: If children will eat the ingredients in the above flavour-packed sauce, simply double the amounts of the extras: tomatoes, olives, capers, parsley & lemon zest, follow method, and toss with all of the pasta.