I have found the type of chili powder used makes a difference. If you are using a fresh, strong, one like Penzey's Chili 3000, you may want to start with ½ teaspoon. If you are a wimp like me and some of my grankiddies, cut back. For those like my kids that enter fresh chili take downs, you may want more!
I recently made Cream Cheese Chicken Chili for a tailgate party and quadrupled the recipe filling my 12 quart roaster oven. It is delicious served over rice. You may also garnish with fresh, chopped, cilantro. For my Trunk or Treat friends, I doubled the recipe almost filling my 6 quart crock-pot.