In a large pan, heat the olive oil on medium heat.
Divide the cheese between 2 of the slices of bread.
In a small bowl, stir together the pumpkin and Sabra spreads. Divide between the two cheese-covered slices of bread and gently spread out evenly. Top with as much as spinach as you'd like, and cover with the other slice of bread, gently pressing it down to adhere it to the hummus/pumpkin combo.
Place the sandwiches into the heated pan, cover with a tight-fitting lid, and cook until toasty and golden brown and the cheese begins to melt, about 2-3 minutes. Watch closely so they don't burn!
Use a spatula to carefully flip each sandwich over and cook until the alternate side is crunchy and golden.