- Preheat the oven to 425º. Brush the tomatoes and shallots with canola oil. Roast on a rimmed baking sheet for about 30 minutes, until softened and browned in spots. Transfer to a blender and let cool completely. Add the vinegar and mustard and puree until nearly smooth. Add the blue cheese and puree until smooth. With the machine on, gradually add the 1/3 cup of canola oil and 1/3 cup of olive oil until incorporated. Season the vinaigrette with salt and pepper.
- In a pie plate, toss the pumpkin seeds with the remaining 1 tablespoon of olive oil and the chile powder and season with salt and pepper. Bake for about 10 minutes, until lightly browned; let cool.
- In a skillet, cook the bacon over moderate heat, stirring, until browned and crisp, about 7 minutes. Transfer to paper towels to drain.
- Arrange the lettuce wedges on plates and top with the pumpkin seeds, bacon, sliced onion and diced tomato. Serve with the tomato vinaigrette.
Make Ahead: The tomato vinaigrette can be refrigerated for up to 3 days.
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Recipe Credit: Tim Love
Image Credit: Con Poulos