Bring a large pot of salted water to a boil and cook the pasta until just al dente, about 8 minutes. Drain and toss with a little olive oil to prevent sticking.
In a deep skillet, heat olive oil over medium heat and add minced garlic. Sauté until fragrant, about 1 minute, until you smell a nutty aroma and the garlic begins to turn golden.
Add the drained black beans (or squid ink if using) to the skillet, stirring to combine. Cook for 3-4 minutes until the mixture becomes thick and glossy, and the color deepens to a dark hue.
Using a spoon or piping bag, carefully shape small ghostly or bat-shaped blobs of the bean mixture onto the sauce, creating spooky shapes that will stand out against the pasta.
Add the cooked pasta to the skillet, gently tossing to coat each piece with the dark sauce. Let everything simmer together for about 1 minute until flavors meld and shapes slightly set.
Sprinkle shredded cheese over the pasta and shapes, allowing it to melt and shimmer. Garnish with chopped herbs for a fresh, bright contrast.
Serve immediately on spooky plates, with optional edible glitter sprinkled on top for extra shimmer. Enjoy the eerie, velvety pasta with friends or family.
