This simple relish of chopped tomato, red onion, Kalamata olives, fragrant with fresh basil and garlic, makes an excellent spread for sandwiches. Fold leftovers into an omelet or toss with whole-grain pasta and some Parmesan cheese.
Combine tomato, onion, olives, basil, garlic, vinegar and pepper in a small bowl. Taste and adjust seasoning.
Make Ahead Tip: Cover and refrigerate for up to 2 hours.