Place green beans and onion in a large bowl, sprinkle with seasonings and toss in 2 Tbsp olive oil to coat.
In a separate bowl, add peppers and mushrooms to the bowl, sprinkle with seasoning and toss in remaining olive oil to coat.
Arrange green beans and onions in a single layer in air fryer basket. Cook 8-10 minutes, until just tender.
Add peppers and mushrooms to the basket and toss with green beans and onions. Cook another 8-10 minutes, until veggies are browned.
To serve, sprinkle with slivered almonds if desired.
Notes
If you like bacon with this dish, chop 3-4 strips of bacon and toss with the veggies in instruction 3 above. Cook with vegetables in the last 8-10 minutes of cooking time.
This dish can be made the same way in the oven. To roast the vegetables prepare the same way but cook on a sheet pan at 375°F. The green beans and onion cooking time should be increased to 10-15 minutes or until beans are tender. Then follow remaining instructions.
Keyword Air Fryer, Anti-Inflammatory, Bell Pepper, Green Beans, Side Dish