Lightly coat a 6-quart stockpot with olive oil spray; heat over medium-high setting.
Add chopped yellow onions and garlic.
Sauté until onion is caramelized, about 5 minutes, adding small amounts of broth for moisture as needed.
Stir in jalapeno and green onions.
Add greens to the stockpot; mix well.
Stir in hot water, dried spices and Stevia Plus. (if using)
Partially cover; reduce heat to low.
Simmer until greens are tender, 45 minutes to 1 hour. (Add small amounts of hot water if needed to keep greens from becoming dry.)