Who the hell eats asparagus for its caloric density? You get plenty of calories from the hollandaise sauce and the potatoes. Given our sedentary lifestyle, low caloric density seems like an advantage, if anything.

We were comparing carbon input to food output, gram for gram. Caloric/nutrient density is completely relevant.

You've thrown that basis out the window by adding additional foods and reframing the argument.

And yet you have merely restated that caloric density is relevant, not explained why it would be. (Nutrient density wasn't your original point.) Asparagus is not grown or eaten for it's calories.

Sweet potato is ~30% the calorie density of beef, and causes 0.01kg co2 per kg according to [0]. I didn't ignore the calorie density,I used the worst case comparison from the article the parent shared, and compared it against the worst case of meat.

[0] https://cigrjournal.org/index.php/Ejounral/article/view/3461