Whisk together milk and egg in a medium bowl. Stir together flour and chili seasoning packet in a shallow bowl. Dip steaks in egg mixture; dredge in flour mixture, shaking off any excess.
Fry steaks in hot oil over medium-high heat in a large skillet 4 to 6 minutes on each side or until golden brown. Drain on a wire rack in a jelly-roll pan. Keep steaks warm in a 225° oven.
Stir in drained and undrained tomatoes and green chiles, and cook 1 to 2 minutes, stirring to loosen particles from bottom of skillet. Whisk in cream. Bring to a boil, whisking constantly; reduce heat, and simmer 5 minutes. Serve with steaks.