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1
Preheat the oven to 400u00b0F.
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2
Line an extra-large baking sheet with parchment paper.
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3
With a sharp knife, cut each chicken breast in half lengthwise.
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4
Place the chicken in a large mixing bowl. Season with salt and some black pepper, to taste.
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5
Cut the grape tomatoes in half crosswise. Slice the red onion into 1/4 inch-thick half moons. Cut the artichokes in half lengthwise. Add to mixing bowl with the chicken, then season with salt and some black pepper, to taste.
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6
Finely mince the garlic and place in a small bowl. Add the olive oil, red wine vinegar, balsamic vinegar, oregano, and dill, then whisk to emulsify the oil and vinegar.
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7
Pour the Greek dressing over the chicken and vegetables, and toss to evenly coat in dressing. Arrange chicken and vegetables in an even layer onto the baking sheet.
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8
Bake the chicken and vegetables on the middle rack of oven for 12 minutes.
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9
Open the oven door and stir the vegetables with a rubber spatula. Continue baking for 10-13 minutes longer.
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10
Remove the baking sheet from the oven when the chicken is cooked through and the tomatoes are slightly blistered.
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11
Roughly chop the Kalamata olives and sprinkle over the chicken and vegetables.
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12
Plate and sprinkle approximately 3 tablespoons of feta cheese over each portion. Serve immediately.