Melt 4 tablespoons of the butter in a large skillet over medium heat and let it bubble, swirling the pan occasionally until the butter begins to brown and develop nutty aroma and brown bits.
Add the ravioli in a single layer (use thawed, not frozen ravioli) and toast without crowding, about 2 to 3 minutes per side, until golden and crisp.
Pour the 1/3 cup water into the skillet and immediately cover to steam the ravioli for 5 to 8 minutes, until the pasta is tender.
Remove the lid, toss the ravioli gently, and add the remaining 2 tablespoons of butter to the pan; stir until melted and coating the ravioli. Season with freshly cracked black pepper and salt if needed.
Top the ravioli with dollops of ricotta, sprinkle with the grated lemon zest, and finish with microgreens or chopped fresh herbs; serve immediately.
Notes
Use thawed ravioli for best results.
Watch the butter closely to avoid burning when browning.
Adjust salt after tasting because ricotta and ravioli may already be seasoned.