Preheat Oven: Preheat to 350°F (175°C) and line a baking sheet.
Cook Sausage: Brown sausage in a skillet until no longer pink; drain fat.
Combine Filling: Mix sausage, cheddar, and ranch until fully blended.
Fill Shells: Spoon mixture into tart shells.
Bake: Bake 8–10 minutes until cheese melts and bubbles.
Serve: Cool slightly before serving for best texture.
