Zucchini & Summer Squash Gratin with Parmesan & Fresh Thyme

Ingredients

• 1-¼ lb. ripe red tomatoes, cored and cut into ¼-inch slices
• ¾ lb. (about 2 small) zucchini or other green summer squash, cut into ¼-inch slices on the bias
• ¼ cup fresh thyme leaves
• Freshly ground black pepper to taste
• 3 Tbs. olive oil
• 2 cloves garlic, minced
• 2 medium onions (14 oz. total), thinly sliced
• + 4 more ingredients
• • ¾ lb. (about 2 small) yellow summer squash or golden zucchini, cut into ¼-inch slices on the bias
  • 1-¼ cups freshly grated parmigiano reggiano
  • 1 tsp. coarse salt
  • 2 Tbs. olive oil

In a medium skillet, heat the olive oil over medium heat. Add the onions and sauté, stirring frequently, until limp and golden brown, about 20 min. Reduce the heat to medium-low if they're browning too quickly. Add the garlic and sauté until soft and fragrant, 1 to 2 min. Spread the onions and ga...

View full recipe at Fine Cooking