The BFP-66 is designed to make baby food from fruit or vegetables, not to steam or grind complete meals (with meat), it is not clearly stated anywhere that this is not allowed, but meat, even in small pieces, is much tougher than fruit or steamed vegetables. Below is a piece from the instructions for use, which does not mention meat either.
Point 3 of the instructions states the following:
Wash, peel and cut the ingredients (vegetables and/or fruit) into small pieces (about 0.5 to 1 cm in size) and put them in the steamer basket. The smaller the ingredients are, the better the food can be steamed.