Preheat the oven to 350 degrees F (175 degrees C). Grease a 9x13-inch baking pan.
Heat a large skillet over medium-high heat. Cook and stir sausage in the hot skillet until browned and crumbly, 5 to 7 minutes. Drain and discard grease.
Meanwhile, heat oil in another skillet over medium heat. Add spinach and saute until just wilted, about 2 minutes. Remove from heat.
Transfer spinach to the prepared baking pan; sprinkle in bell pepper, tomato, and onion. Add 1/2 of the Cheddar cheese. Sprinkle in sausage and bacon bits. Sprinkle with remaining cheese.
Mix eggs, oregano, basil, salt, pepper, and garlic powder together in a blender until combined. Pour mixture into the baking pan over the vegetables and meats.
Bake in the preheated oven until a toothpick inserted into the center comes out clean, about 30 minutes.