Press the tofu for at least 15 minutes to remove excess moisture then cut into four equal rectangular slabs.
Prepare a breading station with three shallow bowls: one containing flour, one containing the soy milk whisked with Dijon mustard, and one containing breadcrumbs mixed with garlic powder, onion powder, paprika, salt, and pepper.
Dredge each tofu slab in the flour, shaking off any excess.
Submerge the floured tofu into the milk and mustard mixture until thoroughly moistened.
Press the tofu into the seasoned breadcrumbs, ensuring all sides are evenly and firmly coated.
Heat the vegetable oil in a large non-stick skillet over medium-high heat until shimmering.
Carefully place tofu slabs in the oil and fry for 3 to 5 minutes per side until deep golden brown and crispy.
Transfer to a wire rack or paper-towel-lined plate to drain.
Serve immediately garnished with fresh parsley and lemon wedges.