Make vinaigrette - If prepping right before cooking, skip to make steps and get frittata in the oven before coming back to this prep step. Dice shallots and whisk shallots with vinegar, Dijon mustard, honey and cooking oil. Season to taste with salt and pepper. (Can be done up to 4 days ahead)
Heat a 10.5” to 12” (26 cm to 30 cm) skillet over medium-high heat. Add chorizo and saute until it begins to brown, ~4 minutes. Then add onions, zucchini and bell peppers with a sprinkle of salt and saute until softened, ~3 minutes.
Remove from heat and pour eggs over top. Stir until ingredients are all mixed through and then transfer to the oven. Bake for 20 to 25 minutes until eggs are set and inserted knife comes out cleanly.
When frittata is done, toss vinaigrette with greens, orange segments and almonds. Enjoy frittata slices with salad on the side!