01 -
Cook the ground beef in a large skillet over medium heat, breaking it up with a spoon, until no longer pink, 5 to 6 minutes. Drain excess fat.
02 -
Stir in the taco seasoning and the undrained diced tomatoes and green chiles. Simmer for 5 minutes, stirring occasionally, until slightly thickened.
03 -
Remove from heat. Fold in the shredded cheddar and ranch dressing until the cheese melts and the mixture is well combined.
04 -
Spoon about 1 tablespoon of the filling into each frozen phyllo tart shell. Arrange on a baking sheet.
05 -
Bake at 350°F (175°C) for 8 to 10 minutes, until the cheese is melted and the phyllo edges are golden. Serve warm or at room temperature.