Creamy Beet risotto - edible Southeastern Massachusetts

Ingredients

• 1 small onion, finely chopped
• several sprigs of fresh thyme, leaves stripped from stem and chopped
• 1 tablespoon olive oil
• pinch of salt
• freshly ground pepper
• 2 cloves of garlic
• ¾ cup Arborio rice
• 2 cups vegetable or other broth, hot
• 10 ounces fresh beets, roasted or steamed, peeled, and cut bite-size
• ¼ cup freshly grated Parmigiano-Reggiano cheese
• 1-2 tablespoons butter, to taste