Add beef to a hot skillet on medium-high heat. Season with Say Grace Taco Seasoning and cook until browned.
Add the evaporated milk to the bottom of a slow cooker.
Toss in the American and pepperjack cheeses to the slow cooker.
Add the diced jalapenos, diced tomatoes with green chiles and browned beef less about 1/4 cup for garnish. Cover slow cooker and cook on low for 2 hours. Be sure to stir every 30 minutes.
Garnish with jalapeƱos, and reserved ground beef. Serve warm with a side of tortilla chips!