In a skillet, heat oil over medium-high heat. Crumble in beef and sprinkle with seasoning; cook, breaking up meat using the Ground Meat Separator, until meat is cooked through, about 3 min. Slice cherry tomatoes in half; reduce heat to medium and add to ground beef mixture.
Meanwhile, in bowl, beat eggs. Thinly slice green onions. Add green onions, cheese, and aioli mix to eggs; mix well. Add to skillet and cook about 2–3 min, until eggs at the edges begin to set.
Slice avocado in half; remove pit. Thinly slice each half. Slice jalapeño crosswise into thin rounds, if using. Arrange avocado and jalapeño on top of egg mixture. Place in the oven and cook about 4–5 min until frittata is puffed and just set.
If time allows, let stand a few minutes before slicing and serving. Add additional toppings, if desired.