Cornbread Crust Ham and Greens Pot Pie

Name: Cornbread Crust Ham and Greens Pot Pie
Ingredients: 2 tbs. vegetable oil; ~4 c. chopped, cooked ham (preferably smoked); 2 small bell peppers (any color), diced; 1 small onion, diced; 2 stalks celery, diced; 3 tbs. flour; 3 c. ham or chicken stock (or low-sodium broth); 1 (16 oz.) pkg. frozen, chopped collard greens; 1 (15.5 oz.) can black-eyed peas, drained & rinsed; ½ tsp. crushed red chile flakes; Salt; Freshly ground black pepper; 1 c. + 2 tbs. white cornmeal; ¾ c. + ½ tbs. flour; 1½ tbs. baking powder; 1 tsp. sugar; ¾ tsp. salt; 2 large eggs, lightly beaten; 1½ c. buttermilk