Pat all the potato cubes thoroughly dry using paper towel/s.
Arrange the sweet potato cubes (if possible in a single layer) in a lightly-buttered 13 x 9-inch dish.
In a small saucepan or the microwave stir together butter, honey and lemon juice until butter melts.
Pour butter mixture over the sweet potatoes; toss well to coat.
Sprinkle with salt and lots of black pepper.
Bake uncovered until just fork-tender stirring and turning with a spatula or wooden spoon (about 40 minutes, might take shorter or longer time depending on the size of sweet potato pieces, try not overbake the sweet potatoes or they will be too soft).