Melt 4 tablespoons of the butter in a large skillet over medium heat until it bubbles and begins to turn golden, swirling the pan occasionally.
Add the uncooked (thawed if previously frozen) cheese ravioli in a single layer and toast without crowding, about 2 to 3 minutes per side, until golden and crisp.
Pour in 1/3 cup water, cover the skillet, and steam the ravioli for 5 to 8 minutes, until tender and cooked through.
Remove the lid, toss the ravioli gently, and add the remaining 2 tablespoons of butter to the pan; let it melt and brown slightly, then season with freshly cracked black pepper and salt to taste.
Top with dollops of ricotta, sprinkle the freshly grated lemon zest, and finish with microgreens or chopped fresh herbs; serve immediately.