Preheat oven to 375 degrees F.
In a medium sized bowl add the softened cream cheese, sour cream, mayonnaise and garlic; mix these ingredients well with a hand mixer (you could also mix in bowl of a stand mixer or also mix by hand with a wooden spoon), until they are blended, smooth and fluffy.
Stir in 1 cup mozzarella cheese and the Parmigiano Reggiano cheese; next, fold in the chopped artichoke hearts.
Add in the parsley, paprika, crushed pepper and lemon juice; stir it all together.
To bake, spoon mixture into a 9x9 casserole dish (or deep dish pie plate) dish, and smooth the top with a spoon; sprinkle over the remaining 1/2 cup of shredded four cheese blend, and place into the oven to bake for 20-22 minutes, or until the dip is hot, bubbly and golden on top; serve with baguette slices or chips.
To prep baguette slices: slice baguette into 1/2" slices. Lightly brush one side of each slice with olive oil. Broil the oiled side for about 2 minutes or just until lightly browned.