Marinated Tomatoes and Cucumbers

My friend arrived from the coast with a ziplock of gorgeous small yellow tomatoes. I didn’t ask her the variety because my mind quickly flashed to a dish of color! What could be better than marinated yellow tomatoes along with red tomatoes and a few slices of an Armenian Cucumber that were in today’s veggie box? Not much is better on a warm day.

6 tomatoes, sliced or the equivalent quartered (depends on the variety what is on hand!)
1/2 cucumber, peeled and sliced
2 slices purple onion, separate into rings
1 garlic clove, crushed
1/4 cup chopped parsley
1 Tbsp chopped basil
1 tsp salt
1 tsp sugar
1/4 tsp fresh ground pepper
1/4 cup olive oil
2 Tbsp vinegar
2 tsp prepared mustard

Layer sliced or quartered tomatoes (depends on the size and variety), cucumber, and purple onion in a shallow dish. Sprinkle parsley and basil on top. Combine oil, vinegar, prepared mustard, salt, sugar, pepper, and garlic in a small jar; shake well. Pour mixture over the vegetables. Let stand at room temperature at least 20 minutes. Chill and serve.