In a large bowl, use an electric hand mixer to beat ½ cup sweetened condensed milk, 1 cup powdered sugar, and an 8 oz block of cream cheese together until smooth. Set aside.
Crack 1 egg into a small bowl and beat it with a fork. Set aside.
Lay an egg roll wrapper in a diamond shape, with one corner pointing towards you and one corner pointed away. About ⅓ of the way up the wrapper, place about 1 ½ tbsp of cream cheese filling (or more) in a horizontal line, leaving about ½” on the right and left sides.
Place a few strawberry cubes on top of the filling. Follow with a few pieces of banana and pineapple cubes, and then a pinch of mini chocolate chips.
Fold up the bottom corner to cover the filling and roll once. Wrap in the two side corners, then continue wrapping until you get to the final, far corner. Wet it with a bit of the beaten egg to hold it in place, then stick the final corner to the egg roll (see photos for clearer explanation).
Heat about 2” of oil until it’s hot enough that when you add an egg roll, it begins to fry immediately. Deep fry the egg rolls in batches, about 4 at a time, turning them so that they cook evenly… When they are brown and the wrapper has bubbled, remove them from oil and let them rest on a paper towel-lined plate to remove excess oil.
Sprinkle with powdered sugar and enjoy!