Heat a large skillet over medium-high heat and add the ground beef, breaking it apart with a spoon as it cooks until no pink remains, about 5-7 minutes. Drain off any excess fat, then stir in the taco seasoning packet, garlic powder, and water. Simmer for 2-3 minutes to let the spices bloom and the liquid reduce slightly. This creates a flavorful, moist seasoned beef base that will anchor the entire dip.
While the beef cooks, combine the softened cream cheese, cottage cheese, and salsa in a food processor or blender. Blend until completely smooth, stopping to scrape down the sides as needed. This creates a rich, tangy foundation that binds all the layers together. I prefer to use Daisy brand cottage cheese because it blends more smoothly than other brands, giving you a silkier final texture.
Spread the seasoned ground beef from Step 1 evenly across the bottom of a 9x13 inch baking dish or similar size serving dish. Pour the creamy cheese mixture from Step 2 over the beef and spread it into an even layer. Sprinkle the finely grated sharp cheddar cheese over the top in an even layer. This layered approach ensures every bite has the right balance of seasoned meat, creamy sauce, and cheese.
While the base is ready, prepare all your fresh toppings: shred the lettuce into 1/4-inch strips, dice the tomatoes into 1/2-inch pieces, and cut the avocado in half lengthwise, remove the pit, and scoop into 1/2-inch cubes. Toss the avocado immediately with the fresh lime juice to prevent browning. Chop the fresh cilantro. Having these prepped and ready means you can finish the dip quickly without any delay.
Working in layers, distribute the shredded lettuce evenly over the cheese base, followed by the diced tomatoes, then the lime-dressed avocado cubes. Finish with a generous sprinkle of fresh cilantro across the top. I like to use Tostitos Scoops for serving because their shape holds way more dip than flat chips, making each bite more satisfying. Serve immediately so the fresh toppings stay crisp and the dip maintains its vibrant color.