First, preheat the oven to 175°C (350°F). Meanwhile, lightly grease a 9-inch glass or ceramic pie dish using butter or cooking spray. Make sure to coat the bottom and sides evenly, because this prevents sticking and makes serving much easier later. Then, set the prepared dish aside so it is ready when the filling is finished.

Next, place a large skillet over medium heat and add the ground beef. Immediately begin breaking it apart using a wooden spoon or spatula. Continue cooking the beef for about 6 to 8 minutes, stirring frequently so it browns evenly. At this stage, listen for the gentle sizzling sound and watch for the color to turn from pink to deep brown.

After that, once the beef is fully cooked, sprinkle the taco seasoning evenly over the surface. Then, stir thoroughly so the seasoning coats every piece of meat. Continue cooking for another 1 to 2 minutes so the spices bloom in the heat and release their full aroma. If excess grease collects in the pan, carefully drain most of it while leaving a small amount for flavor and moisture.

Then, transfer the seasoned beef into the prepared pie dish. Spread it evenly across the bottom using the back of a spoon. Make sure the layer is level, because this helps the egg mixture cook uniformly later.

Meanwhile, crack the eggs into a large mixing bowl. Then, add the heavy cream, minced garlic, salt, and pepper. Whisk the mixture thoroughly for about 30 to 60 seconds. Continue whisking until the eggs and cream are fully combined and slightly frothy. At this point, the mixture should look smooth and pale yellow.

Next, slowly pour the egg mixture evenly over the seasoned beef in the pie dish. Pour carefully so the beef remains evenly distributed. You will notice the liquid settling between the meat pieces, which ensures the entire pie binds together during baking.

After that, sprinkle the shredded cheddar cheese evenly across the top. Make sure to cover the surface fully, because this creates a golden, flavorful crust.

Then, place the dish in the preheated oven on the center rack. Bake for 30 minutes. During baking, the eggs will set and the cheese will melt and turn lightly golden. Check for doneness by gently shaking the dish. The center should feel firm and no longer liquid.

Finally, remove the pie from the oven and allow it to rest for at least 5 minutes. This resting period allows the structure to firm up, which makes slicing cleaner and easier. Then, slice into portions and serve warm.