Polenta Stuffed Poblanos

Name: Polenta Stuffed Poblanos
Ingredients: 1 Pound (about 6) Poblanos or other large chilies; 2 Tablespoon Olive or Canola Oil, plus more for brushing; 1/2 Teaspoon Cumin Seeds; 2 Oz (1 small) Onion, chopped; 1 1/3 Cups Vegetable Stock, divided; ½ Teaspoon Table Salt (if using unsalted stock), approximate, to taste.; 2.44 Oz (1/2 Cup) Cornmeal, course ground preferred; 8 Oz (1½ Cups) Black or White Beans, cooked & drained; 4 Oz Jack, Chihuahua, and/or Cheddar Cheese, shredded, optional; 3 1/2 Cups Green or Red Enchilada Sauce of Choice, store bought or homemade