You won’t find “Do Not Touch” signs in Marcello Andres Ortega’s studio and retail space, housed in a Quonset hut just south of downtown Dallas. The ceramics artist encourages visitors to the showroom to feel and hold his plates, bowls, and copitas—small cups used for drinking mezcal, sherry, and other spirits. Formed out of Texas clay and natural minerals and fused in fire in one of the workshop’s five kilns, Ortega’s pieces are somehow simultaneously granular and smooth.But the appeal of the dinnerware extends beyond the tactile. The primary palette of creams, taupes, and dark grays invites you to appreciate what sits atop each dish: for example, an order of avocado toast’s shock of green against the neutral canvas of a plate. “The food is…