INGREDIENTS
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1 small zucchini, halved lengthwise
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1 red sweet pepper, stemmed, seeded, and quartered
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1/2 small red onion, cut into 1/2-inch thick slices
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1/2 pound asparagus, trimmed
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3 tablespoons olive oil
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4 cups cooked whole grain rotini pasta
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1 tablespoon balsamic vinegar
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1/4 teaspoon salt
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1/8 teaspoon ground black pepper
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2 tablespoons fresh oregano, chopped
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Shredded Parmesan cheese (optional)