Heat olive oil in a medium sized skillet over medium-high heat. Add the mushrooms, thyme, salt and pepper, and sauté for 2-3 minutes. Add the kale and red onions and sauté, stirring occasionally, for 3-4 additional minutes, until mushrooms have browned and kale is wilted.
Mix together the hummus, lemon juice and zest and paprika.
Slice the pita pockets in half and toast for 3-4 minutes. Spread the hummus mixture over each piece of pita and layer with mushrooms, kale, cherry tomatoes, feta cheese, and red onions.