Citrus Arugula Salad

3 medium oranges, peeled and segmented or  

sliced 

2 cups button mushrooms, sliced 

1⁄2 cup cherry tomatoes, halved 

2 zucchini, sliced lengthwise into long strips 

1⁄2 tablespoon cumin seeds 

5 cups arugula 

1⁄2 tablespoon balsamic vinegar 

Fresh lime juice, to taste