Summer Squash Saute

Ingredients

• 4 tablespoons butter
• 1 small onion, thinly sliced
• 2 tablespoons chopped garlic
• 2 tablespoons chopped fresh tarragon or 2 teaspoons dried
• 1 pound yellow crookneck squash, trimmed, sliced into 1/3-inch-thick rounds
• 1 pound small zucchini, trimmed, sliced into 1/3-inch-thick rounds