For fun, I dialed-in a diet to see how simply I could meet my dietary requirements. (Yes, for fun. I have a French essay and I'm bored.)
This is working on the assumption that weekly averages matter more than daily intake.

The diet:
-2 bananas
-300g potato
-200g lamb's liver
-8 eggs
-50-75g sunflower seeds

Cost: 2-3/day.

The add-ons: to balance 6:3, increase calcium, vitamin D2 and vitamin K eat fish (bone-in) and either broccoli, spinach or dairy twice a week. (So 100g sardines/kippers twice a week and 300g broccoli twice a week would be a good example.) (+3/week)

Nutrition:
-2106kcal
-121g fat
-125g protein
-140g carbs

Vitamins:
Vitamin A
54878IU 1098%

Vitamin C
86.6mg 144%

Vitamin D
~136IU ~34%

Vitamin E (Alpha Tocopherol)
~29.7mg ~148%

Vitamin K
~28.1mcg ~35%

Thiamin
2.5mg 165%

Riboflavin
11.6mg 681%

Niacin
45.8mg 229%

Vitamin B6
5.2mg 262%

Folate
1235mcg 309%

Vitamin B12
176mcg 2942%

Pantothenic Acid
21.6mg 216%

Choline
~1108mg

Betaine
~30.0mg

Minerals:
Calcium
320mg 32%

Iron
33.2mg 184%

Magnesium
467mg 117%

Phosphorus
2299mg 230%

Potassium
3710mg 106%

Sodium
1020mg 42%

Zinc
20.7mg 138%

Copper
22.2mg 1108%

Manganese
3.9mg 193%

Selenium
401mcg 573%

Fluoride
~171mcg