- 1 (8 ounce) package cream cheese, softened
- 1/4 cup sour cream
- 1/4 cup mayonnaise
- 1/4 cup grated white onion
- 1 (10 ounce) can diced tomatoes with green chile peppers (such as ROTEL®)
- 1/2 teaspoon garlic powder
- salt and ground black pepper to taste
- 2 cups shredded Cheddar cheese
- Stir together the cream cheese, sour cream, and mayonnaise until smooth. Add the grated onion, the drained tomatoes with green chilies, garlic powder, salt, and pepper. Stir in the Cheddar cheese. Refrigerate until set, at least 2 hours.