savory green tomato cobbler

Name: savory green tomato cobbler
Ingredients: for the filling; 5 cups firm green tomatoes; 1 large yellow onion; 2 tablespoons olive oil; 2 cloves garlic; 1/2 teaspoon cumin; 1/2 teaspoon salt; 1/4 teaspoon red chili flakes; 2 tablespoons all-purpose flour; for the biscuit topping; 1 cup all purpose flower; 2 teaspoons baking soda; 1 teaspoon baking powder; 1/2 cup cold butter; 1 1/2 cups sharp cheddar cheese, grated; 1 jalapeno pepper, seeded and diced; 1 1/4 cups milk; 2 tablespoons coarse cornmeal