Summer Succotash Cobbler with Cornbread Topping recipes

Name: Summer Succotash Cobbler with Cornbread Topping recipes
Ingredients: 3 T mustard butter; 1/2 medium yellow onion, diced (about 1 cup); 1 small jalapeño pepper, seeded and finely diced (a little less than 2 tablespoons); 3 garlic cloves minced (1 tablespoon); 2 small zucchini, thinly sliced (about 2 cups); 3 c yellow beans, trimmed and sliced into 1 pieces; 2 c corn kernels (2 ears of corn worth); 1/2 c leek confit; 1/3 c dry white wine; 1/2 t sea salt; 1/2 t fresh dried oregano; 1 t dill seed; 1/2 c grated Parmesan cheese; 1/2 c grated Gruyere cheese; 1 cup halved cherry tomatoes (or chopped small tomatoes); 2 T halved kalamata olives; 1 egg; 2/3 c 2% milk; 3 T melted unsalted butter; 1/2 c all-purpose flour; 1/2 c corn flour; 2 t baking powder